Re: Text parsing?

2004-01-18 Thread Jefferson San Juan
 For what purposes will I find I need to use all these tools you write
 about?  
 I'm talking about awk, ed, ex, etc.  I haven't found the need to do so, yet, 
 but I'd like to possibly learn this stuff before I really do need it.

Such programs are usually used in shell scripts to parse out a part or some 
parts of a text output either from a text file or an output from a program 
such as ifconfig for instance.

- Jefferson

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Re: Text parsing?

2004-01-18 Thread Rob
Eric F Crist asked on Sun Jan 18, 2004:

 For what purposes will I find I need to use all these tools you write
about?
 I'm talking about awk, ed, ex, etc.  I haven't found the need to do so,
yet,
 but I'd like to possibly learn this stuff before I really do need it.

Logfiles and config files are usually text, and a standard set of text
processing tools exist. This leads to the Unix tradition of sticking little
things together.

For example, I'm doing a 'make release' - there's a lot of repeated output,
so it's hard to see how far it's gone if it crashes. So to save the output,
I run it under the script(1) command. Then on another tty, I run

  tail -f /var/tmp/script | grep '^[+]'

which shows the main headings of the build process.

After a while, many admin tasks start to look like text processing problems.

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Re: Text parsing?

2004-01-18 Thread Scott W
Eric F Crist wrote:

Hello group,

For what purposes will I find I need to use all these tools you write about?  
I'm talking about awk, ed, ex, etc.  I haven't found the need to do so, yet, 
but I'd like to possibly learn this stuff before I really do need it.

 

Depends on what your system is used for- I've used the previously 
mentioned tools almost daily when working as a sysadmin- for monitoring 
disk qusage, process CPU usage, parsing output (log and standalone 
application one-time logs), install logsyou name it.

Scott

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Text parsing?

2004-01-17 Thread Eric F Crist
Hello group,

For what purposes will I find I need to use all these tools you write about?  
I'm talking about awk, ed, ex, etc.  I haven't found the need to do so, yet, 
but I'd like to possibly learn this stuff before I really do need it.

-- 
Eric F Crist
AdTech Integrated Systems, Inc
(612) 998-3588

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Re: Text parsing?

2004-01-17 Thread Chris Haulmark
 Hello group,

 For what purposes will I find I need to use all these tools you write
 about?
 I'm talking about awk, ed, ex, etc.  I haven't found the need to do so,
 yet,
 but I'd like to possibly learn this stuff before I really do need it.

 --
 Eric F Crist
 AdTech Integrated Systems, Inc
 (612) 998-3588

Many of us all learn from several books, online articles, and other forms
of documentations.

For you, perhaps, you should have your own system with an UNIX/Linux
operating system to experiment with.

If you are going to mess with FreeBSD, you can use
http://www.freebsd.org/handbook (a shortcut link to the famed handbook). 
That would help you to get started into the FreeBSD basics.

For your listed commands, the learning documents can be found at
http://www.google.com with certain words such as replace sed to discover
what the proper usage of sed to replace strings.

Also, on your UNIX/Linux systems, you should have manpages to help you. 
You could simply type in man sed to learn what you could do with sed.
Best place to learn more about manpages is by typing in man man :)

.::.
Chris Haulmark
chaulmark -at- idefense.com
System Administrator
iDefense, Inc.

Disclaimer: This post or any type of personal participation that you read
from this individual does not represent the views of iDefense, its
affiliates, its employees, nor the trashman unless this post is to be
stated official. What you read represents my personal opinion(s) or
view(s) and is my sole responsibility.

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Re: Text parsing?

2004-01-17 Thread Eric F Crist
On Saturday 17 January 2004 10:14 pm, Chris Haulmark wrote:

 Many of us all learn from several books, online articles, and other forms
 of documentations.

 For you, perhaps, you should have your own system with an UNIX/Linux
 operating system to experiment with.

 If you are going to mess with FreeBSD, you can use
 http://www.freebsd.org/handbook (a shortcut link to the famed handbook).
 That would help you to get started into the FreeBSD basics.

 For your listed commands, the learning documents can be found at
 http://www.google.com with certain words such as replace sed to discover
 what the proper usage of sed to replace strings.

 Also, on your UNIX/Linux systems, you should have manpages to help you.
 You could simply type in man sed to learn what you could do with sed.
 Best place to learn more about manpages is by typing in man man :)

Chris, 

Thanks for your reply.  Those are all sources I'm aware of.  Also, I've been 
using FreeBSD since 1998, running different web servers and such.  I suppose 
I should have been a little more specific.  What, specifically, do you find 
you need to use these commands for?  What kinds of text files?  Log files?  
I'm not sure.

Thanks again for your reply.
-- 
Eric F Crist
AdTech Integrated Systems, Inc
(612) 998-3588

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