Re: [PHP] Re: whoami explanation
Robert Cummings schreef:
On Tue, 2009-03-03 at 11:27 -0500, PJ wrote:
Shawn McKenzie wrote:
PJ wrote:
This really needs some explanation
I found this on the web:
?php echo `whoami`; ?
with it there was the comment the direction of those single-quotes
matters
(WHY ?)
and it works
But this (_*FROM THE PHP MANUAL***_ * - exec()* executes the given
/command/ ) does not,
COPIED AND PASTED:
|?php
// outputs the username that owns the running php/httpd process
// (on a system with the whoami executable in the path)
echo exec('whoami');
? |
What is going on here?
And I often find such discrepancies in examples - and some wonder why I
seem to be so stupid... and don't know the fundamentals... :-\
Others have shown how exec() returns the output. If you use
shell_exec() it's the same as using the backticks:
?php echo `whoami`; ?
-or-
?php echo shell_exec(whoami); ?
You can use single quotes here also, i used double so you can easily
tell they are not backticks
What is not clear to me is why would I need to use a shell? What kind of
situations call for it's use?
You must be a point and clicker.
a PACman.
Many, many, many people use the shell
to perform basic system administration, edit config files, even edit
source code. There are thousands of shell commands available at the
touch of your fingertips while in a shell. Using the backticks or exec()
function allows one to utilize these programs as part of a larger
program.
of course the real answer is no-one can explain who you are, you have to
find out for yourself
Cheers,
Rob.
--
PHP General Mailing List (http://www.php.net/)
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[PHP] Re: whoami explanation
PJ wrote:
This really needs some explanation
I found this on the web:
?php echo `whoami`; ?
with it there was the comment the direction of those single-quotes matters
(WHY ?)
and it works
But this (_*FROM THE PHP MANUAL***_ * - exec()* executes the given
/command/ ) does not,
COPIED AND PASTED:
|?php
// outputs the username that owns the running php/httpd process
// (on a system with the whoami executable in the path)
echo exec('whoami');
? |
What is going on here?
And I often find such discrepancies in examples - and some wonder why I
seem to be so stupid... and don't know the fundamentals... :-\
Others have shown how exec() returns the output. If you use
shell_exec() it's the same as using the backticks:
?php echo `whoami`; ?
-or-
?php echo shell_exec(whoami); ?
You can use single quotes here also, i used double so you can easily
tell they are not backticks
--
Thanks!
-Shawn
http://www.spidean.com
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: whoami explanation
Shawn McKenzie wrote:
PJ wrote:
This really needs some explanation
I found this on the web:
?php echo `whoami`; ?
with it there was the comment the direction of those single-quotes matters
(WHY ?)
and it works
But this (_*FROM THE PHP MANUAL***_ * - exec()* executes the given
/command/ ) does not,
COPIED AND PASTED:
|?php
// outputs the username that owns the running php/httpd process
// (on a system with the whoami executable in the path)
echo exec('whoami');
? |
What is going on here?
And I often find such discrepancies in examples - and some wonder why I
seem to be so stupid... and don't know the fundamentals... :-\
Others have shown how exec() returns the output. If you use
shell_exec() it's the same as using the backticks:
?php echo `whoami`; ?
-or-
?php echo shell_exec(whoami); ?
You can use single quotes here also, i used double so you can easily
tell they are not backticks
What is not clear to me is why would I need to use a shell? What kind of
situations call for it's use?
--
Phil Jourdan --- p...@ptahhotep.com
http://www.ptahhotep.com
http://www.chiccantine.com
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: whoami explanation
On Tue, Mar 3, 2009 at 11:27, PJ af.gour...@videotron.ca wrote: What is not clear to me is why would I need to use a shell? What kind of situations call for it's use? On what kind of programming did you spend those years? -- /Daniel P. Brown daniel.br...@parasane.net || danbr...@php.net http://www.parasane.net/ || http://www.pilotpig.net/ 50% Off All Shared Hosting Plans at PilotPig: Use Coupon DOW1 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Re: whoami explanation
From: PJ What is not clear to me is why would I need to use a shell? What kind of situations call for it's use? It's a matter of expectations. I am still trying to figure out why anyone would want a GUI on any version of Unix or Linux. They just slow me down and make it very difficult to do any real work. Bob McConnell -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: whoami explanation
On Tue, 2009-03-03 at 11:27 -0500, PJ wrote:
Shawn McKenzie wrote:
PJ wrote:
This really needs some explanation
I found this on the web:
?php echo `whoami`; ?
with it there was the comment the direction of those single-quotes
matters
(WHY ?)
and it works
But this (_*FROM THE PHP MANUAL***_ * - exec()* executes the given
/command/ ) does not,
COPIED AND PASTED:
|?php
// outputs the username that owns the running php/httpd process
// (on a system with the whoami executable in the path)
echo exec('whoami');
? |
What is going on here?
And I often find such discrepancies in examples - and some wonder why I
seem to be so stupid... and don't know the fundamentals... :-\
Others have shown how exec() returns the output. If you use
shell_exec() it's the same as using the backticks:
?php echo `whoami`; ?
-or-
?php echo shell_exec(whoami); ?
You can use single quotes here also, i used double so you can easily
tell they are not backticks
What is not clear to me is why would I need to use a shell? What kind of
situations call for it's use?
You must be a point and clicker. Many, many, many people use the shell
to perform basic system administration, edit config files, even edit
source code. There are thousands of shell commands available at the
touch of your fingertips while in a shell. Using the backticks or exec()
function allows one to utilize these programs as part of a larger
program.
Cheers,
Rob.
--
http://www.interjinn.com
Application and Templating Framework for PHP
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: whoami explanation
PJ wrote:
Shawn McKenzie wrote:
PJ wrote:
This really needs some explanation
I found this on the web:
?php echo `whoami`; ?
with it there was the comment the direction of those single-quotes matters
(WHY ?)
and it works
But this (_*FROM THE PHP MANUAL***_ * - exec()* executes the given
/command/ ) does not,
COPIED AND PASTED:
|?php
// outputs the username that owns the running php/httpd process
// (on a system with the whoami executable in the path)
echo exec('whoami');
? |
What is going on here?
And I often find such discrepancies in examples - and some wonder why I
seem to be so stupid... and don't know the fundamentals... :-\
Others have shown how exec() returns the output. If you use
shell_exec() it's the same as using the backticks:
?php echo `whoami`; ?
-or-
?php echo shell_exec(whoami); ?
You can use single quotes here also, i used double so you can easily
tell they are not backticks
What is not clear to me is why would I need to use a shell? What kind of
situations call for it's use?
Well, if you need to run any executable on the server to have it do
something or return something. Whether you need to get some information
from the system or run an executable that does something specific.
Maybe you want to do a 'ps -ef' to get processes on linux, or maybe you
want to start a service on windows 'netstart SOMESERVICE'.
--
Thanks!
-Shawn
http://www.spidean.com
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: whoami explanation
Daniel Brown wrote: On Tue, Mar 3, 2009 at 11:27, PJ af.gour...@videotron.ca wrote: What is not clear to me is why would I need to use a shell? What kind of situations call for it's use? On what kind of programming did you spend those years? Not really programming, more like overseeing the programming of others (as a client) and trying to fix their awful mistakes about which I learned from lists on the Net. I tinkered with some basic stuff and looked into machine code back around `82... never very serious... Now I'm trying to modify my daughter's ptahhotep.com to use MySql. It's a learning experience. My real profession if director and director of photography in motion pictures and tv. :-D I appreciate the help I'm getting here and the fact that I am tolerated here (maybe just)... -- Phil Jourdan --- p...@ptahhotep.com http://www.ptahhotep.com http://www.chiccantine.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: whoami explanation
Bob McConnell wrote: From: PJ What is not clear to me is why would I need to use a shell? What kind of situations call for it's use? It's a matter of expectations. I am still trying to figure out why anyone would want a GUI on any version of Unix or Linux. They just slow me down and make it very difficult to do any real work. Bob McConnell Ok, I thought I understood. The only programs I use that are non-shell on FreeBSD are openoffice and FireFox3, and sometimes Gimp. I use the shell for administration of the server and program installation and maintenance... I suppose a shell on Windows would be the cmd but I never thought of it as a shell. :-) -- Phil Jourdan --- p...@ptahhotep.com http://www.ptahhotep.com http://www.chiccantine.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: whoami explanation
On Tue, Mar 3, 2009 at 11:48, PJ af.gour...@videotron.ca wrote: [snip!] Now I'm trying to modify my daughter's ptahhotep.com to use MySql. It's a learning experience. Through the years I've probably sounded like a broken record or like I'm paid to endorse them or something, but I'd recommend checking out PHPBuilder for some of this. Specifically: http://phpbuilder.com/columns/index.php3?cat=1subcat=2 Some other great sites for code snippets and examples are from folks here on this list: http://webbytedd.com/a.php http://phpguru.org/ and, of course, it should go without saying that Google and the manual should be your first stop. -- /Daniel P. Brown daniel.br...@parasane.net || danbr...@php.net http://www.parasane.net/ || http://www.pilotpig.net/ 50% Off All Shared Hosting Plans at PilotPig: Use Coupon DOW1 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: whoami explanation
Daniel Brown wrote: On Tue, Mar 3, 2009 at 11:48, PJ af.gour...@videotron.ca wrote: [snip!] Now I'm trying to modify my daughter's ptahhotep.com to use MySql. It's a learning experience. Through the years I've probably sounded like a broken record or like I'm paid to endorse them or something, but I'd recommend checking out PHPBuilder for some of this. Specifically: http://phpbuilder.com/columns/index.php3?cat=1subcat=2 Some other great sites for code snippets and examples are from folks here on this list: http://webbytedd.com/a.php http://phpguru.org/ and, of course, it should go without saying that Google and the manual should be your first stop. Oh, I do go through some of that and when my brain has turned to php mush, I turn to you guys to get my thrashing (and pretty good results) O:-) -- Phil Jourdan --- p...@ptahhotep.com http://www.ptahhotep.com http://www.chiccantine.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: whoami explanation
On Tue, Mar 03, 2009 at 11:27:08AM -0500, PJ wrote: snip What is not clear to me is why would I need to use a shell? What kind of situations call for it's use? If you don't know the answer to that question, why would you ask the original question? If you don't believe you don't have a use for this material, don't worry about it. At the least, examine a book on the subject, rather than asking questions here. If this was a mission-critical part of your project and you need an immediate answer now, then I understand asking the question here. But if the whole thing is hypothetical, take the opportunity to read up on it; it's not critical to your work at this point. And asking us where a character is on your keyboard? Come on. I'm the first guy in line to answer newbie questions if I can. And I've castigated list members for framing their answers in a way which would be impossible for newbies to understand. And I understand how things can get confusing to newbies. But I sometimes reach a point where I begin to wonder whether a newbie is actually paying attention. Or whether a newbie is really just playing around, wasting our time because he won't take the time to buy a book or carefully research an item on the web. And FWIW, php.net has better documentation than that of any other package I've ever seen. I keep a browser tab open to php.net at all times. Paul -- Paul M. Foster -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
