Re: [SLUG] great code to learn from - request
Benno wrote: So I think in the tradiation of anti-partterns, it is best to ask, which code sucks and why, and then try to avoid doing that. I recall reading something similar in a M$ publication a long time ago. One has to go through many iterations bad code/design before one recognises one that is good (great ?). I guess that means learning from others' and your own mistakes experiences. Hasn't made me a better developer yet, though. Regards, Rajnish -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from
* Erik de Castro Lopo [EMAIL PROTECTED] spake thus: Just about any language can be made to look good by applying to a small problem that suites the language. Large projects tackling large difficult problem domains test the language and the developer much more that toy problems. good point. So, to consider something particularly large - what about the linux kernel itself? yes I know - not python, but I am interested in the general case as well - though maybe skip the assembler bits. are there bits of it that have been done exceedingly well... Cheers, Taryn -- This .sig temporarily out-of-order. We apologise for any inconvenience - The Management -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
Benno wrote: On Wed Sep 21, 2005 at 13:09:52 +1000, Taryn East wrote: what nobody else is going to bite? :( I think this is because great code is code is due to the absence of suckiness rather than the presence of brilliance. At least IMHO.[1] So I think in the tradiation of anti-partterns, it is best to ask, which code sucks and why, and then try to avoid doing that. Years ago (like 1998 or so) I had a look at the then current Procmail sources. Those were truely blecherous. Indentation was totally random, there was repeated chunks of code all over the place etc etc. I ran away screaming. Erik -- +---+ Erik de Castro Lopo +---+ I saw `cout' being shifted Hello world times to the left and stopped right there. -- Steve Gonedes -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
Rajnish wrote: Benno wrote: So I think in the tradiation of anti-partterns, it is best to ask, which code sucks and why, and then try to avoid doing that. I recall reading something similar in a M$ publication a long time ago. One has to go through many iterations bad code/design before one recognises one that is good (great ?). I guess that means learning from others' and your own mistakes experiences. Hasn't made me a better developer yet, though. My rule of thumb is that three iterations result in a reasonable low-bug high-reliablity product. (Of course, provided you and/or your team are competent! MS programmers need not apply) First iteration: really just a prototype that reflects the first design often developed with RAD tools with scant regard for optimisations Second iteration: this is probably an alpha version, that moves to beta status and is inflicted upon your users/public Third iteration: this is the chance we'd all like to have, and sometimes do get: redesign and recode the parts of the product you now know are sucky due to feedback from the Real World (TM) These iterations are not 'releases', but major major redesigns and recodings. I consider myself lucky if I can get time/funding/resources to get to the Third Iter, but usually, the enterprise stops at the Second. For a brand new idea, I think that only a fool would eschew iters First and Second. cheers rickw -- _ Rick Welykochy || Praxis Services Failure is not an option, it comes bundled with every Microsoft product. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
* QuantumG [EMAIL PROTECTED] spake thus: I heard someone bitching the other day that gtk+/python apps are slow. Not been my experience, but if you're sufficiently bored, why don't you download some and see for yourself? I guess my point was that there are so many out there to choose from, and time is finite. So I figured if there are better ones out there I should start with those, or, in the case of C, continue on with those. For me the C is more important. My python is little enough that I am still figuring out the basics - but with C - I know the basics, I'm fairly reasonable already... what I want to know is how to turn myself into a brilliant C-hacker and the one good way, I figure, is to study the work of other brilliant C-hackers... and thus learn a few things. randomly hacking my way through mediocre C and stumbling across new tricks by accident seems to be a little more ad-hoc than it should have to be. :) Cheers, Taryn -- This .sig temporarily out-of-order. We apologise for any inconvenience - The Management -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
On Wed, Sep 21, 2005 at 03:55:06PM +1000, Benno wrote: On Wed Sep 21, 2005 at 13:09:52 +1000, Taryn East wrote: what nobody else is going to bite? :( I think this is because great code is code is due to the absence of suckiness rather than the presence of brilliance. At least IMHO.[1] Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it. From SIGPLAN Notices Vol. 17, No. 9, September 1982, pages 7-13. So the best code is code you look at and say is that it - I could have done that, even though you probably couldn't have. If you're interested in systems, I'd suggest starting with an intermediate step of some good books first, the obvious ones that spring to mind are Lions' Commentary on UNIX 6th Edition, with Source Code - John Lions Advanced Programming in the UNIX Environment - Stevens TCP/IP Illustrated - Stevens Linux Kernel Development - Robert Love (top levels of the kernel) IA-64 Linux Kernel - David Mosberger (how an architecture really works) Once you've got some idea jump in and start programming something. Follow Rusty's driver tutorial from LCA, write toolbars for Mozilla, fix that annoying bug in Gnome. You'll soon see how things hang together, and identify what is good and what isn't. It's like learning a musical instrument; you can read about guitar technique (and that's certainly part of it) but you really need to sit there and strum the thing to get any good. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
* Benno [EMAIL PROTECTED] spake thus: I think this is because great code is code is due to the absence of suckiness rather than the presence of brilliance. At least IMHO.[1] make sense - but surely there's some code around that has had the greatest amount of suckiness removed... or at least enough that it's better than most. So I think in the tradiation of anti-partterns, it is best to ask, which code sucks and why, and then try to avoid doing that. ok, so what are your thoughts? :) and, in the same vein, does that stupid things students do emailing list (I think it was a KEG thing) still exist? I've been making do with thedailywtf.com but it doesn't always have the same ring to it. :) Cheers, Taryn -- This .sig temporarily out-of-order. We apologise for any inconvenience - The Management -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] debsig is on!
Due to a scheduling hiccup no debsig has been announce, and Mind Control is happening in DebSigs normal slot... So come along, and you *WILL* have fun. Guaranteed, send no money now, and we'll throw in ... Rob -- GPG key available at: http://www.robertcollins.net/keys.txt. signature.asc Description: This is a digitally signed message part -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
Taryn East wrote: I've been making do with thedailywtf.com but it doesn't always have the same ring to it. :) I read the dailyWTF for sheer entertainment value :) I wonder why 90%+ of the examples are from Windows developers? The site is a great source of antipatterns. cheers rickw -- _ Rick Welykochy || Praxis Services Failure is not an option, it comes bundled with every Microsoft product. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Accidental mouse gestures in Firefox driving me insane.
Hi all, Firefox keeps randomly going back. It seems to be some kind of mouse gesture triggered by my trackpad. I'd like to disable gestures in FF completely. I can't find the option in the GUI or about:config. I've tried with an extension, All In One Gestures, but it doesn't seem to be working. Mike -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Accidental mouse gestures in Firefox driving me insane.
On Wed, Sep 21, 2005 at 04:42:49PM +1000, Mike MacCana wrote: Firefox keeps randomly going back. It seems to be some kind of mouse gesture triggered by my trackpad. I'd like to disable gestures in FF completely. Do you have horizontal scrolling on your trackpad? The same thing happened to me when I switched over to a mouse with horizontal scrolling. This tip http://www.macosxhints.com/article.php?story=20050821141856688lsrc=osxh fixed it for me. -i signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: wifi router
I recently acquired a couple of WRT54G routers to create a wireless network at home. I've flashed one of them with the dd-wrt firmware. The great thing about using the open source firmwares out there like dd-wrt and OpenWRT is that you can turn your router into anything you want - router, access point, wireless ethernet bridge, making it a very versatile piece of kitOn 9/20/05, Matthew Palmer [EMAIL PROTECTED] wrote: On Mon, Sep 19, 2005 at 12:44:24PM +0200, Gottfried Szing wrote: Hi again The good thing about OpenWRT is that you can install it and use the hardware for something else than the factory programmed functionalities. I recently installed Asterisk PBX on it. It's a quite sweet device. For good or bad, it could run Apache as well (lacks persistant memory space though). i forgot to ask in the last mail: have you used the packages that are availble via ipkg or a different piece of software? is this software stable enough for home-usage?Rock solid for me.- Matt--SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
Taryn East wrote: what nobody else is going to bite? :( I felt for sure there'd at least be one person self-promoting: my code is briliant, you should come see it in my project foo ;) I've spent many long hours on libsndfile: http://www.mega-nerd.com/libsndfile/ It had its first release in 1999, has gone through a number of major internal refactorings, has gone through one API revision and has code contributions (small) from over 20 developers. This is whats interesting in libsndfile: - A well designed API. I often get compliments on how easy it is to get soemthing going with a minimum of fuss. Contrast this with using the Ogg and Vorbis libraries. - Easily extensible internal structure so that new file formats and data encodings can be added relatively easily. New formats never change the public API. - Handles data in big and little endian formats and runs on big and little endian CPUs. - Contains two separate uses of stdargs. - A comprehensive test suite. My guess is that this suite covers about 90% of all code paths. Erik -- +---+ Erik de Castro Lopo +---+ ... a discussion of C++'s strengths and flaws always sounds like an argument about whether one should face north or east when one is sacrificing one's goat to the rain god. -- Thant Tessman -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
I'm asking for anybody's opinion of code that they think is worthwhile to look at. It doesn't have to be universally accepted as being perfect (though that would be really good if you know of any) just what you have found to be really great. cheers, Taryn [who is trying to prod a sleeping tiger...] Have you looked at the sources for TeX? I haven't myself, not being a C coder, but iirc nobody's found a bug in it for about a decade. Knuth is certainly a highly-regarded programmer, so it could be worth a look. Cheers, James -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
RE: [SLUG] Presentation Mind Control - 21st September 2005
Oscar, Have you grown too technical and too old to have a sense of humour anymore? Lighten up - the talk is obviously on conference presentation. Rafael Kraus Software Developer Wild Internet Telecom [EMAIL PROTECTED] 02 8306 0088 Technical Support 02 8306 0077 Sales | 02 8306 0099 Fax 02 8306 0055 Administration 1300 13 WILD (9453) National | 1300 13 WILD (9453) Fax -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of O Plameras Sent: Wednesday, 21 September 2005 10:42 AM To: Jacinta Richardson Cc: slug@slug.org.au Subject: Re: [SLUG] Presentation Mind Control - 21st September 2005 Jacinta Richardson wrote: G'day everyone, You are invited to join us in a talk by Paul Fenwick about Presentation Mind Control - how to make other people think your talk is much better than it really is. Come and learn some great tips on how to improve your presentations. Just a friendly comment to say the use of Mind Control and make ... people think ...your talk... is better than ... it is are words that do not sync well with technical people and are hardly acceptable as modes of conduct or behaviour to many technical persons. That's probably why some people are so emphatic in their comments. In my view, it is impossible to achieve high technical discipline and honesty when entertaining the use of Mind Control and espousing the philosophy of let's get people to think my product or service is better than it actually is'. It strikes at the heart of one's honesty, credibility, and reliability. Just the same I intend to be present in this afternoon's presentation to find out for myself. If you've check this page you'll know one of the many reasons as to what I mean: http://en.wikipedia.org/wiki/Mind_control The intention of this post is to clarify why it is so controversial and generates a lot of heat. Don't mean to offend anyone. O Plameras Conference Presentation Mind Control At the heart of any good conference are its presenters. To learn new skills and discover new ideas are what conferences are all about -- at least that's what you tell your boss when you apply for funding. Presenting is a rewarding, and often prestigious activity, but some speakers seem to do it better than others. Paul Fenwick shares his experiences of almost a decade of teaching and public speaking. Discover how to keep your audience's attention, how to improve your presentation techniques, and how to use mind control to get others to do your bidding. Details === When: 6:30pm, 21st September 2005 Where: James Squires Brewhouse 2 The Promenade, King St Wharf Sydney Fee: $0.00 This event is hosted by the Sydney Perl Mongers. Also presenting will be Andrew Savige discussion Damian Conway's newest book: Perl Best Practices. Everyone is welcome. All the best, Jacinta -- O Plameras http://www.acay.com.au/~oscarp/tutor -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html Wild Technology Pty Ltd , ABN 98 091 470 692 Sales - Ground Floor, 265/8 Lachlan Street, Waterloo NSW 2017 Admin - Level 4 Tiara, 306/9 Crystal Street, Waterloo NSW 2017 Telephone 1300-13-9453 | Facsimile 1300-88-9453 http://www.wildtechnology.net DISCLAIMER CONFIDENTIALITY NOTICE: The information contained in this email message and any attachments may be confidential information and may also be the subject of client legal - legal professional privilege. If you are not the intended recipient, any use, interference with, disclosure or copying of this material is unauthorised and prohibited. This email and any attachments are also subject to copyright. No part of them may be reproduced, adapted or transmitted without the written permission of the copyright owner. If you have received this email in error, please immediately advise the sender by return email and delete the message from your system. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
RE: [SLUG] Presentation Mind Control - 21st September 2005
3) Unfortunately, Jacinta earnt her bile. And here I was thinking that enough bile would be produced in Jacinta's own liver. Rafael Kraus Software Developer Wild Internet Telecom [EMAIL PROTECTED] 02 8306 0088 Technical Support 02 8306 0077 Sales | 02 8306 0099 Fax 02 8306 0055 Administration 1300 13 WILD (9453) National | 1300 13 WILD (9453) Fax Wild Technology Pty Ltd , ABN 98 091 470 692 Sales - Ground Floor, 265/8 Lachlan Street, Waterloo NSW 2017 Admin - Level 4 Tiara, 306/9 Crystal Street, Waterloo NSW 2017 Telephone 1300-13-9453 | Facsimile 1300-88-9453 http://www.wildtechnology.net DISCLAIMER CONFIDENTIALITY NOTICE: The information contained in this email message and any attachments may be confidential information and may also be the subject of client legal - legal professional privilege. If you are not the intended recipient, any use, interference with, disclosure or copying of this material is unauthorised and prohibited. This email and any attachments are also subject to copyright. No part of them may be reproduced, adapted or transmitted without the written permission of the copyright owner. If you have received this email in error, please immediately advise the sender by return email and delete the message from your system. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Gentoo
Hi to all Once more. I have been travelling around Aus for abount 15 Months and am noew settled down again. Its a BIG country 15 months and we saw only a small part of it. Down to business!!! Do any Sluggers run Gentoo? Has anyone tried to install the Gentoo live cd? How many answers to affirn will i get? Thanks Gerald -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] minimal live CD
I just used a live CD for the first time (Ubuntu), and as good as it is, all I really want is a shell for diagnostics. It took ages to install. Can anyone suggest a live distro that either doesn't have X at all, or has an option to bypass it. Naturally it would be nice if it was reasonably modern with most of the latest drivers etc. I've looked at the Knoppix website, but that looks similar in concept to Ubuntu. thanks... David. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Presentation Mind Control - 21st September 2005
Michael Kraus wrote: Oscar, Have you grown too technical and too old to have a sense of humour anymore? You've nothing to say constructive, so don't say it here. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Gentoo
On Wed, 21 Sep 2005 18:54, Gerald [EMAIL PROTECTED] wrote:
Do any Sluggers run Gentoo?
I do.
Has anyone tried to install the Gentoo live cd?
Not since 2002, when I installed my main system. That's a testament to how
well a Gentoo system can run and be kept up-to-date, despite being
source-based.
If you don't know what you doing, however, you can easily mess things up. I've
found Gentoo to be a wonderful way to learn about the innards of the OS. I
make the odd mistake from time to time, but I learn a lot in the process of
fixing them.
If you want a system to tinker with and learn, or if you want to stay on the
bleeding-edge, I wholeheartedly recommend Gentoo. Otherwise, you might be
better off with a binary-based distro.
--
Sridhar Dhanapalan [Yama | http://www.pclinuxonline.com/]
{GnuPG/OpenPGP: http://dhanapalan.webhop.net/yama.asc
0x049D38B4 : A7A9 8A02 78CB AB1B FCE4 EEC6 2DD9 249B 049D 38B4}
Don't try to be like Jackie. There is only one Jackie. Study computers
instead. -- Jackie Chan
pgpganXvNyu4k.pgp
Description: PGP signature
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Re: [SLUG] Presentation Mind Control - 21st September 2005
On Wed, Sep 21, 2005 at 05:59:10PM +1000, Michael Kraus wrote: Lighten up - the talk is obviously on conference presentation. Of course, that's just what YOU would LIKE us TO believe! -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
On Wed, Sep 21, 2005 at 01:09:52PM +1000, Taryn East wrote: what nobody else is going to bite? :( Depends whether you wanted programming in the small or large. Jon Bentley's Programming Pearls books are excellent. Not sure whether they count as FOSS though. Matt -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Your browser does not support script
Huh ? I've happily used internet banking with Commonwealth, St. George, and ANZ using Epiphany, Galeon, Firefox Mozilla but now find Moz is the only one working and all the others are giving me variations on the message that 'Your browser does not support Javascript'. Yet under all the Preferences I've ticked all the correct boxes explicitly allowing Javascript. My Gnome network proxy is set to allow direct internet connection (unlike T*bird F*fox I never managed to get it working) and I'm at a loss ... What am I missing here ? Adam Bogacki, [EMAIL PROTECTED] signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] minimal live CD
On Wed, 2005-09-21 at 19:38 +1000, David wrote: I just used a live CD for the first time (Ubuntu), and as good as it is, all I really want is a shell for diagnostics. It took ages to install. Can anyone suggest a live distro that either doesn't have X at all, or has an option to bypass it. Naturally it would be nice if it was reasonably modern with most of the latest drivers etc. I've looked at the Knoppix website, but that looks similar in concept to Ubuntu. systemrescuecd-x86-0.2.15.iso has a few useful programs and fits on a small (8cm) CD. INSERT-1.3.5a_en.iso is even smaller (50MB) and fits on a business card sized CD. dsl-1.5.iso is a small general purpose distro which also fits on a business card sized CD. Puppy fits on a small USB stick. Current version is 1.0.4 with 1.0.5 due out next week. cheers, Ken -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Your browser does not support script
pop up blocking St George for example wont even work with IE6 sp2 unless you tell the pop up blocker to ignore the St George website (same for Firefox). So add your banks URL to the pop up blocker allowed list. On Wed, 2005-09-21 at 23:28 +1200, Adam Bogacki wrote: Huh ? I've happily used internet banking with Commonwealth, St. George, and ANZ using Epiphany, Galeon, Firefox Mozilla but now find Moz is the only one working and all the others are giving me variations on the message that 'Your browser does not support _javascript_'. Yet under all the Preferences I've ticked all the correct boxes explicitly allowing _javascript_. My Gnome network proxy is set to allow direct internet connection (unlike T*bird F*fox I never managed to get it working) and I'm at a loss ... What am I missing here ? Adam Bogacki, [EMAIL PROTECTED] -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html Regards Richard Neal When we speak of free software, we are referring to freedom, not price -- Richard M. Stallman -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] minimal live CD
David wrote: I've looked at the Knoppix website, but that looks similar in concept to Ubuntu. There are a million Knoppix variants, but if you want a Knoppix shell you can simply boot knoppix with knoppix 2 at the boot prompt. it boots runlevel 2 I think - all knoppix root shell, with all hardware and software available, except X. dave -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Your browser does not support script
Yet under all the Preferences I've ticked all the correct boxes explicitly allowing Javascript. My Gnome network proxy is set to allow direct internet connection (unlike T*bird F*fox I never managed to get it working) and I'm at a loss ... What's the gnome network proxy? Chris- -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] minimal live CD
On Wednesday 21 September 2005 19:47, [EMAIL PROTECTED] wrote: I just used a live CD for the first time (Ubuntu), and as good as it is, all I really want is a shell for diagnostics. It took ages to install. Can anyone suggest a live distro that either doesn't have X at all, or has an option to bypass it. Naturally it would be nice if it was reasonably modern with most of the latest drivers etc. I've looked at the Knoppix website, but that looks similar in concept to Ubuntu. thanks... David it looks as if you are quite a newby gee how do you say that kindly, and I do mean it so. All the distros can give you text mode. You are probably best off using a terminal session within X. I think that you'd be best off using something like knoppix (dsl, puppylinux etc) then choosing something that suits your style/application when you have a better insight to what is available, what it can do, and what you want to do. Most distros have tools to do the hard stuff. They are often X based. I just about never use anything but CLI, but an xterm is more comfortable than a console. Cheers James -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] minimal live CD
On Wed, 2005-09-21 at 21:30 +1000, Ken Caldwell wrote: On Wed, 2005-09-21 at 19:38 +1000, David wrote: I just used a live CD for the first time (Ubuntu), and as good as it is, all I really want is a shell for diagnostics. It took ages to install. Can anyone suggest a live distro that either doesn't have X at all, or has an option to bypass it. Naturally it would be nice if it was reasonably modern with most of the latest drivers etc. I've looked at the Knoppix website, but that looks similar in concept to Ubuntu. systemrescuecd-x86-0.2.15.iso has a few useful programs and fits on a small (8cm) CD. I'll second the vote for sysrescuecd. I almost always have a copy in my car/bag/pocket. It has a small X server, but doesn't run by default. My only complaint with it is that the last time I did any work on SLUG's server, the sysrescuecd I had with me only had a 2.4 kernel. Made playing with software RAID a bit more annoying. Puppy fits on a small USB stick. Current version is 1.0.4 with 1.0.5 due out next week. And my other favourite distribution is Tom's rootboot ( http://www.toms.net/rb/ ). It'll fit on a floppy if you can format it to 1.7MB (most are happy to do this). Or if you're feeling extravagant, there's a 3MB CD boot image. -- Pete -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Heres on for the late nighters
I am trying to get Skype to run through artsd and jack so I can pipe it to an icecast client. Below is what I got from the guy who wrote the icecast client: This bit works fine: jackd -d alsa -r 44100 # Or however you normally start it. # The next line will not work if arts is suspended. It must be stopped. However when I try to run this bit: artsd -F 15 -S 128 -r 44100 -a jack -d I get the following error: Error while initializing the sound driver: unable to select 'jack' style audio I/O I'm assuming that artsd needs to have jack support built into it however it looks like the Ubuntu version doesn't have this. Can someone confirm this for me, and if it does and I'm just being blinded by lack of sleep, could you let me know how to get it working correctly. Thanks -- James Purser Chief Talking Guy - Linux Australia Update http://k-sit.com - My Blog http://la-pod.k-sit.com - Linux Australia Update Blog and Forums Skype: purserj1977 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Presentation Mind Control - 21st September 2005
On Mon, Sep 19, 2005 at 10:03:23AM +1000, Jacinta Richardson wrote: G'day everyone, You are invited to join us in a talk by Paul Fenwick about Presentation Mind Control - how to make other people think your talk is much better than it really is. Come and learn some great tips on how to improve your presentations. Hi Jacinta, thanks for arranging this talk and for inviting SLUGgers; it was a very interesting presentation and it was good to meet some of the local Perl geeks. Paul is a geek, and his presentation was for geeks. It had enough random diagrams of brain parts and lego to entertain all the big and little kids in the room. It was as much about how to clearly explain technical concepts as about how to keep people's attention. It certainly wasn't about how to make sales pitches, motivate or otherwise deceive people. Afterwards (as was mentioned in the announcement) there was a technical talk about best practices for Perl programming. After that we all chatted over some games of pool, and lots of exchanging of contact details between the Perl and SLUG crowds went on. It was a good opportunity for like-minded geeks from different groups to meet up. cheers, Conrad. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] usb audio device for kernel 2.4
hi slugs, today my asus wifi router has arrived and i am going to play around with it this weekend. so i will try to install openwrt. because it has 2x usb ports, having a standalone mp3-player with an external harddisk seems to be possible. i have checked the support for external storage of linux and this works fine, but i havent seen a list of supported usb-audio-devices. on the web are hosts of pages that describe sometimes that usb-audio is no problem, sometimes that it is not working with all devices - always the same when i am looking for a new hardware for linux :) so, has someone a usb-audio device in use? requirements: - linux 2.4 support (because openwrt uses this version) - headphone mini jack. i want to connect it to my amplifier br, gottfried -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] usb audio device for kernel 2.4
On 21/9/2005, Gottfried Szing [EMAIL PROTECTED] wrote: i have checked the support for external storage of linux and this works fine, but i havent seen a list of supported usb-audio-devices. on the web are hosts of pages that describe sometimes that usb-audio is no problem, sometimes that it is not working with all devices - always the same when i am looking for a new hardware for linux :) That's because audio was very well specified in the USB spec, so for basic audio, any device will just work. Other features like knobs, switches or in the case of those Skype phone handsets the keypad, will require a special driver. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] usb audio device for kernel 2.4
On Wed, 2005-09-21 at 17:41 +0200, Gottfried Szing wrote: i have checked the support for external storage of linux and this works fine, but i havent seen a list of supported usb-audio-devices. on the web are hosts of pages that describe sometimes that usb-audio is no problem, sometimes that it is not working with all devices - always the same when i am looking for a new hardware for linux :) The Linux-USB guys maintain a fairly large list of compatible devices at http://www.qbik.ch/usb/devices/ . -- Pete -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] gzip from perl script
I'm using a Perl script for MySQL backup, I'd like to compress the
database dumps, the business end of the script runs like:
---
while (my @arr = $sth-fetchrow) {
print $arr[1]\n;
system(rm $backuppath/$arr[1]-$oldyear$oldmonth$oldday.sql);
system(mysqldump --opt $arr[1] -u $DB_User --password=$DB_Password
$backuppath/$arr[1]-$year$month$day.sql);
}
---
do I simply add like:
system(gzip $backuppath/$arr[1]-$year$month$day.sql);
(and change the 'rm' line extension?)
?
--
Voytek
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Re: [SLUG] gzip from perl script
On 9/22/05, Voytek [EMAIL PROTECTED] wrote: [snip] do I simply add like: system(gzip $backuppath/$arr[1]-$year$month$day.sql); (and change the 'rm' line extension?) ? http://search.cpan.org Look for the GZIP module, nicer way of doing it. Also, you probably want to use unlink instead of that system rm command. There's probably even a MySQL module to do the MySQL dump. Usually it's best using those as it allows to look at return codes and it generally looks much neater in the code. HTH. Cheers, Gonzalo -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Gentoo
I'm a FreeBSD user/sysadmin/tweak-for-fun-guy. I used slackware until recently when I started to use Gentoo as my GNU/Linux system. Gentoo has a package management system that resembles the BSD ports system. If you take your time reading the Gentoo Handbook, you'll have enough knowledge to make it less greedy. In fact, there's more of FreeBSD in Gentoo than just that. And no, it *doesn't* take 3 days or so to build the whole system in an average machine if you do it from a universal install CD. You'll copy most of the stuff into your hard disk as opposed to compiling everything from source. For knowledge sake, it's a great tool. If you understand what you're doing when installing Gentoo, you'll go through LFS like a breeze (or vice-versa, which was my case). Then understanding how Ubuntu/Debian/Slackware/whatever works will become a lot easier. On 9/21/05, Gerald [EMAIL PROTECTED] wrote: Hi to all Once more. I have been travelling around Aus for abount 15 Months and am noew settled down again. Its a BIG country 15 months and we saw only a small part of it. Down to business!!! Do any Sluggers run Gentoo? Has anyone tried to install the Gentoo live cd? How many answers to affirn will i get? Thanks Gerald -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Julio C. Ody http://rootshell.be/~julioody -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
* Ian Wienand [EMAIL PROTECTED] spake thus: So the best code is code you look at and say is that it - I could have done that, even though you probably couldn't have. good point! If you're interested in systems, I'd suggest starting with an intermediate step of some good books first, the obvious ones that spring to mind are snip thanks, I'm always on the lookout for good books. I'll add these to the list. Once you've got some idea jump in and start programming something. grin have been for 5 years now - which I guess is part of my point: I'm not a beginner programmer, I know how to program reasonably well. I was hoping to find any methods that would take me beyond reasonable into excellent... books help with that - and I devour them regularly; programming helps, but it's a bit of a blind search. I figured that looking at smart code would also help. I fully agree that actually writing it is better than reading it, but I also figured there'd be no harm in reading good stuff on top of all the rest :) Cheers and thanks, Taryn -- This .sig temporarily out-of-order. We apologise for any inconvenience - The Management -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
* Matthew Hannigan [EMAIL PROTECTED] spake thus: On Wed, Sep 21, 2005 at 01:09:52PM +1000, Taryn East wrote: what nobody else is going to bite? :( Depends whether you wanted programming in the small or large. anything and everything will help. Jon Bentley's Programming Pearls books are excellent. thanks - this sounds like a good lead. Not sure whether they count as FOSS though. I only really stipulated FOSS so that I had a chance to look at the code :) thanks, Taryn -- This .sig temporarily out-of-order. We apologise for any inconvenience - The Management -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Gentoo
just for everyones info if you want BSD style linux (and lets face it... who doesnt) there is crux! www.crux.nu Dean Julio Cesar Ody wrote: I'm a FreeBSD user/sysadmin/tweak-for-fun-guy. I used slackware until recently when I started to use Gentoo as my GNU/Linux system. Gentoo has a package management system that resembles the BSD ports system. If you take your time reading the Gentoo Handbook, you'll have enough knowledge to make it less greedy. In fact, there's more of FreeBSD in Gentoo than just that. And no, it *doesn't* take 3 days or so to build the whole system in an average machine if you do it from a universal install CD. You'll copy most of the stuff into your hard disk as opposed to compiling everything from source. For knowledge sake, it's a great tool. If you understand what you're doing when installing Gentoo, you'll go through LFS like a breeze (or vice-versa, which was my case). Then understanding how Ubuntu/Debian/Slackware/whatever works will become a lot easier. On 9/21/05, Gerald [EMAIL PROTECTED] wrote: Hi to all Once more. I have been travelling around Aus for abount 15 Months and am noew settled down again. Its a BIG country 15 months and we saw only a small part of it. Down to business!!! Do any Sluggers run Gentoo? Has anyone tried to install the Gentoo live cd? How many answers to affirn will i get? Thanks Gerald -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Julio C. Ody http://rootshell.be/~julioody -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] great code to learn from - request
Hi Taryn, It seems to me you are looking for a project to exercise and to learn new tricks in programming. Project that challenges you enough but not too much, for starters. An environment that provides feedbacks - positive, neutral, or negative or peer reviews of your work. Then, if I were in your shoes I will check, for starters, the list of Linux KERNEL BUGS that nobody has taken ownership for some time (meaning it's too easy for the regular bug hunter and fixer that they avoid doing the job), work on it, and if your happy with what you've done, you publish it so others may check the results of your toil, or otherwise keep it to yourself. Then, as you get experience and confidence take on the more tricky BUG Fixing project. This way you get to read real codes and truly understand it. There's no better code than working codes. Along the way who knows you may also polish your skills in other disciplines like Code Version Controls, Archiving, documentation, etc. You may also check the bug-list of other smaller projects to work on it. Or you even go 'Bounty Hunting' and get a prize for your programming effort. Check for example: http://www.horde.org Just an idea. O Plameras Taryn East wrote: * Ian Wienand [EMAIL PROTECTED] spake thus: So the best code is code you look at and say is that it - I could have done that, even though you probably couldn't have. good point! If you're interested in systems, I'd suggest starting with an intermediate step of some good books first, the obvious ones that spring to mind are snip thanks, I'm always on the lookout for good books. I'll add these to the list. Once you've got some idea jump in and start programming something. grin have been for 5 years now - which I guess is part of my point: I'm not a beginner programmer, I know how to program reasonably well. I was hoping to find any methods that would take me beyond reasonable into excellent... books help with that - and I devour them regularly; programming helps, but it's a bit of a blind search. I figured that looking at smart code would also help. I fully agree that actually writing it is better than reading it, but I also figured there'd be no harm in reading good stuff on top of all the rest :) Cheers and thanks, Taryn -- O Plameras http://www.acay.com.au/~oscarp/tutor -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] gzip from perl script
G'day Voytek,
In a spirit of defensive programming, I have an important question for you.
What happens if the mysqldump fails? Perhaps the database goes offline part way
through, perhaps the disk fills up... since you've just deleted your old backup,
what are you going to do?
I suggest the following changes to your code:
* Take the backup first
* Check that it didn't fail
* Then do compression
* Check that it didn't fail (find out the possible failure modes,
can it corrupt your file? What happens if all the disk space vanishes
half way through?
* Then, when you're fairly certain that things will be okay, delete the
old version.
while( my ($ignored, $database) = $sth-fetchrow() ) {
print $database\n;
# Make the backup
system(mysqldump --opt $database -u $DB_User --password=$DB_Password .
$backuppath/$database-$year$month$day.sql);
# Handle any errors
if($?) {
# something went wrong... try to guess what.
die some error as appropriate;
}
# Do the compression
system(gzip, $backuppath/$database-$year$month$day.sql);
# Handle any errors
if($?) {
# something went wrong... try to guess what.
die some error as appropriate;
}
# Now that you're fairly certain that the new backup has worked...
unless( unlink($backuppath/$database-$oldyear$oldmonth$oldday.sql.gz);
# something went wrong... try to guess what.
# This could just be that the file doesn't exist.
die if you think it's appropriate;
}
}
It might also be worth using chdir to change into $backuppath so that you don't
need to keep prepending that:
chdir $backuppath or die Failed to chdir to $backuppath $!;
You probably also want to wonder why you're pulling out a column from the
database and then ignoring it.
Whether or not it's better to use system or a module to do your compression
depends on a few things, like how easy it is to get modules installed, how easy
it is to use the module you select. If you do use a module you're more likely
to have intuitive error handling rather than having to check one of Perl's very
super extra special variables.
All the best,
Jacinta
--
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Re: [SLUG] usb audio device for kernel 2.4
On Wed, Sep 21, 2005 at 05:41:38PM +0200, Gottfried Szing wrote: so, has someone a usb-audio device in use? requirements: - linux 2.4 support (because openwrt uses this version) - headphone mini jack. i want to connect it to my amplifier I use an Edirol UA-20 audio/MIDI interface, and it just works. It has the features you're describing, but is probably overkill for your application. I thought you might appreciate hearing from someone who has worked with a USB audio interface, rather than just having read about them. -- Mark -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] gzip from perl script
quote who=Jacinta Richardson
thanks, Jacinta
ahem, you assume I'm somewhat perl-literate, beyond knowing how to
paste'n'save... I'm not...
the script was kindly given to me in the past by a slugger
paste'n'save gave me an error on the last '}' in your additions, after
chopping it, I'm getting:
# perl mysqlbackup-day.pl
syntax error at mysqlbackup-day.pl line 61, near );
Execution of mysqlbackup-day.pl aborted due to compilation errors.
line 61 is:
unless( unlink($backuppath/$database-$oldyear$oldmonth$oldday.sql.gz);
script now is:
---
#!/usr/bin/perl
use DBI;
use Mysql;
use Date::Pcalc qw(:all);
$DB_Host = localhost;
$DB_Name = mysql;
$DB_User = backup;
$DB_Password = password;
$backuppath = /backup/mysql;
$myoffset = -3; # set the number of days back to delete. Basically -number
of days you wish to keep logs rotating for.
my $dbh =
Mysql-Connect($DB_Host;database=$DB_Name;,$DB_User,$DB_User,$DB_Password)
or die $Mysql::db_errstr;
($year,$month,$day) = Today();
if (length($day)==1) {
$day = 0$day;
}
if (length($month)==1) {
$month = 0$month;
}
($oldyear, $oldmonth, $oldday) = Add_Delta_YMD($year, $month, $day, 0, 0,
$myoffset);
if (length($oldday)==1) {
$oldday = 0$oldday;
}
if (length($oldmonth)==1) {
$oldmonth = 0$oldmonth;
}
$dbh-selectdb(mysql) or die $Mysql::db_errstr;
my $sth = Query $dbh SELECT * FROM db or die $Mysql::db_errstr;
while( my ($ignored, $database) = $sth-fetchrow() ) {
print $database\n;
# Make the backup
system(mysqldump --opt $database -u $DB_User --password=$DB_Password .
$backuppath/$database-$year$month$day.sql);
# Handle any errors
if($?) {
# something went wrong... try to guess what.
die some error as appropriate;
}
# Do the compression
system(gzip, $backuppath/$database-$year$month$day.sql);
# Handle any errors
if($?) {
# something went wrong... try to guess what.
die some error as appropriate;
}
# Now that you're fairly certain that the new backup has worked...
unless( unlink($backuppath/$database-$oldyear$oldmonth$oldday.sql.gz);
# something went wrong... try to guess what.
# This could just be that the file doesn't exist.
die if you think it's appropriate;
}
undef $sth;
undef $dbh;
---
--
Voytek
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Re: [SLUG] gzip from perl script
Voytek wrote:
quote who=Jacinta Richardson
thanks, Jacinta
ahem, you assume I'm somewhat perl-literate, beyond knowing how to
paste'n'save... I'm not...
My apologies. Although I do find that it's usually better to to assume that
people who are asking about an existing Perl program are more often Perl
literate than they are Perl newbies. :)
unless( unlink($backuppath/$database-$oldyear$oldmonth$oldday.sql.gz);
Ah. Remove the trailing ; and replace with a ) {
script now is:
---
#!/usr/bin/perl
use DBI;
use Mysql;
use Date::Pcalc qw(:all);
$DB_Host = localhost;
$DB_Name = mysql;
$DB_User = backup;
$DB_Password = password;
$backuppath = /backup/mysql;
$myoffset = -3; # set the number of days back to delete. Basically -number
of days you wish to keep logs rotating for.
my $dbh =
Mysql-Connect($DB_Host;database=$DB_Name;,$DB_User,$DB_User,$DB_Password)
or die $Mysql::db_errstr;
($year,$month,$day) = Today();
if (length($day)==1) {
$day = 0$day;
}
if (length($month)==1) {
$month = 0$month;
}
($oldyear, $oldmonth, $oldday) = Add_Delta_YMD($year, $month, $day, 0, 0,
$myoffset);
if (length($oldday)==1) {
$oldday = 0$oldday;
}
if (length($oldmonth)==1) {
$oldmonth = 0$oldmonth;
}
$dbh-selectdb(mysql) or die $Mysql::db_errstr;
my $sth = Query $dbh SELECT * FROM db or die $Mysql::db_errstr;
You probably don't need to to select *. But it doesn't hurt.
while( my ($ignored, $database) = $sth-fetchrow() ) {
print $database\n;
# Make the backup
system(mysqldump --opt $database -u $DB_User --password=$DB_Password .
$backuppath/$database-$year$month$day.sql);
# Handle any errors
if($?) {
# something went wrong... try to guess what.
die some error as appropriate;
}
You might want to make the above error somewhat more useful. Perhaps:
die Mysqldump failed for some reason.;
just so that you know... I've reindented. Hopefully you just lost the
indentation in your cut and paste.
# Do the compression
system(gzip, $backuppath/$database-$year$month$day.sql);
# Handle any errors
if($?) {
# something went wrong... try to guess what.
die some error as appropriate;
}
You probably want to change this error message as well.
die Failed to gzip file.;
# Now that you're fairly certain that the new backup has worked...
unless( unlink($backuppath/$database-$oldyear$oldmonth$oldday.sql.gz);
This should be:
unless( unlink($backuppath/$database-$oldyear$oldmonth$oldday.sql.gz)) {
# something went wrong... try to guess what.
# This could just be that the file doesn't exist.
die if you think it's appropriate;
}
On further thought you proably want to change this die to the following:
warn Failed to remove $database-$oldyear$oldmonth$oldday.sql.gz: $!;
as failing to delete might not be important enough to stop doing all the
backups.
All the best,
Jacinta
--
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Re: [SLUG] gzip from perl script
On 9/21/05, Voytek [EMAIL PROTECTED] wrote:
...
do I simply add like:
system(gzip $backuppath/$arr[1]-$year$month$day.sql);
(and change the 'rm' line extension?)
Go for it. There's no reason to install the module when you can safely
do it via system(). In fact, don't be afraid of using it at all. You
would need a module in a system without the gzip CLI tool but equipped
with the library... which anyway seems quite unusual for a *nix.
If you're not using strict, there's no reason to use my before any
variables. But instead of removing them, go for strict. You'll
probably have a few problems getting the program to run, but mind the
error messages, correct them, and move on.
A quick solution for that would be, instead of using Perl (nothing
against it, I'm a Perl lover), do it in shell. Like in:
$ mysqldump -u user | gzip --best dbbackup.$(date +%s).gz
You won't be able to check for the gzipped file size *before* actually
writing it to disk (unless you take that gzip output and count the
number of bytes, then compare with a df output...). So you can trap a
failure by doing something like
#/bin/sh
if ! mysqldump -u user 2 ~./mybackuperrors.$$ | gzip --best ...
# then maybe
echo -n $(date +%s)-`cat .mybkperrror.$$` /var/log/mybackuperrors
# more error handling, log anything, bail out
And here's a MySQL backup system, with error logging. Cron it, and
you're off and running in no time.
I'm using a Perl script for MySQL backup, I'd like to compress the
database dumps, the business end of the script runs like:
---
while (my @arr = $sth-fetchrow) {
print $arr[1]\n;
system(rm $backuppath/$arr[1]-$oldyear$oldmonth$oldday.sql);
system(mysqldump --opt $arr[1] -u $DB_User --password=$DB_Password
$backuppath/$arr[1]-$year$month$day.sql);
}
---
do I simply add like:
system(gzip $backuppath/$arr[1]-$year$month$day.sql);
(and change the 'rm' line extension?)
?
--
Voytek
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Julio C. Ody
http://rootshell.be/~julioody
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Re: [SLUG] gzip from perl script
quote who=Jacinta Richardson Voytek wrote: My apologies. Although I do find that it's usually better to to assume that people who are asking about an existing Perl program are more often Perl literate than they are Perl newbies. :) no need to apologize, I'm flattered On further thought you proably want to change this die to the following: warn Failed to remove $database-$oldyear$oldmonth$oldday.sql.gz: $!; as failing to delete might not be important enough to stop doing all the backups. yes, 'die' was a show stopper, 'warn' is better (especially as I'm deleting 3 generations prior, anyhow) I just need to force a 'y' here, or pass to gzip ...screen snip--- gzip: /backup/mysql/postfix-20050922.sql.gz already exists; do you wish to overwrite (y or n)? ... thanks for all the help, -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] gzip from perl script
Jacinta Richardson wrote:
Voytek wrote:
quote who=Jacinta Richardson
unless( unlink($backuppath/$database-$oldyear$oldmonth$oldday.sql.gz);
Ah. Remove the trailing ; and replace with a ) {
Oh, cool, a Perl person.
One thing thats been bugging me for a while about Perl is the
lack of a butfirst keyword. This would be *really* useful for
constructs like:
{
# Huge chunk of code
}
butfirst
{
# Second huge chunk of code to be executed
# before the one above.
} ;
Sincerely,
Erik
--
+---+
Erik de Castro Lopo
+---+
Incompetence, like misery, seeks company. -- Erik Naggum
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Re: [SLUG] usb audio device for kernel 2.4
On Thu, Sep 22, 2005 at 11:38:57AM +1000, Mark Johnathan Greenaway wrote: On Wed, Sep 21, 2005 at 05:41:38PM +0200, Gottfried Szing wrote: so, has someone a usb-audio device in use? requirements: - linux 2.4 support (because openwrt uses this version) - headphone mini jack. i want to connect it to my amplifier I use an Edirol UA-20 audio/MIDI interface, and it just works. It has the features you're describing, but is probably overkill for your application. I thought you might appreciate hearing from someone who has worked with a USB audio interface, rather than just having read about them. I have had similar just works experiences with a Roland Edirol UA-5, and an Apogee Mini-me. Both usb-audio. Getting them to work with jack is a complete PITA, however, so if you do a lot of jack apps, I'd recommend something else. I have a working .asoundrc which works with jack, but it is less than ideal. Mark - does the UA-20 do sensible audio formats that jack likes? Denis -- Dr Denis Crowdy Department of Contemporary Music Studies Macquarie University NSW 2109, Australia +61 2 9850 6787; http://www.dcms.mq.edu.au -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Script help
Hi all, Can anyone tell me why I get no output from this script? I am not good at writing my own so modify others. I have tested that it is reading the allusers.txt by adding an echo $name #!/bin/bash while read name; do grep $name smbpasswd; done allusers.txt My basic problem is I have an smbpasswd file where for a couple of years users were not removed properly so that there are about 350 extra users in the smbpasswd file - I want to cut it down to the right size - and be able to reuse the usernames. I have a complete list 'allusers.txt' of all the valid users. Once this worked I was just going to pipe the output to a nwe file. OLMC Simon Bryan IT Manager [EMAIL PROTECTED] LMB 14 North Parramatta Direct Number:88381200 SwitchBoard: 96833300 fax: 98901466 mobile: 0414238002 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Script help
#!/bin/bash while read name; do grep $name smbpasswd; done allusers.txt are the names in allusers.txt listed one per line? -- Vino Fernando Crescini Intelligent Systems Laboratory School of Computing IT phone: +61 2 4736 0140 University of Western Sydney email: [EMAIL PROTECTED] Locked Bag 1797 web: www.cit.uws.edu.au/~jcrescin Penrith South DC NSW 1797 Scanned by SCIT E-Mail Gateway http://www.cit.uws.edu.au -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
