(hopefully) simple perl question...

[Jonathan Lupa]

Is there a built in command, or shell command to retrieve the process
name from a pid?

The best I could come up with is slurping the stuff from /proc/cmdline
or something like ps|cut, but it seems to me there is probably a
better way I am ignorant of.

Thanks!
Jonathan

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Re: (hopefully) simple perl question...

[William T Wilson]

On Mon, 28 Feb 2000, Jonathan Lupa wrote:

 Is there a built in command, or shell command to retrieve the process
 name from a pid?

ps ax | awk '$1 == pid {print $5}'

There's no builtin command to do this.  I don't know if Perl can do it or
not.  I doubt it, though.

 The best I could come up with is slurping the stuff from /proc/cmdline
 or something like ps|cut, but it seems to me there is probably a
 better way I am ignorant of.

/proc/pid/cmdline won't work on anything except linux; you should use
ps.

Re: (hopefully) simple perl question...

[Colin Watson]

[EMAIL PROTECTED] (William T Wilson) wrote:
On Mon, 28 Feb 2000, Jonathan Lupa wrote:
 Is there a built in command, or shell command to retrieve the process
 name from a pid?

ps ax | awk '$1 == pid {print $5}'

Or indeed 'ps -o%c h -p pid'. This will probably break on other
Unices (and older versions of ps, for that matter), but this is
debian-user, right? :)

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Re: (hopefully) simple perl question...

[Jonathan Lupa]

On Tue, Feb 29, 2000 at 03:42:20AM +, Colin Watson wrote:
 [EMAIL PROTECTED] (William T Wilson) wrote:
 ps ax | awk '$1 == pid {print $5}'
 
 Or indeed 'ps -o%c h -p pid'. 

Thanks guys! :)

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Re: (hopefully) simple perl question...

[Keith G. Murphy]

Jonathan Lupa wrote:
 
 Is there a built in command, or shell command to retrieve the process
 name from a pid?
 
 The best I could come up with is slurping the stuff from /proc/cmdline
 or something like ps|cut, but it seems to me there is probably a
 better way I am ignorant of.
 
I wonder if the Proc::ProcessTable module, available at CPAN, wouldn't
do this for you?

simple perl question

[dave oswald]

In a perl script i need to load a variable ($CurrentTime) with the
systems current time. Normally I would consult with my reference books
but am not able to get to them. I find myself using them when I need to
work in perl which is not very often...
I'm looking for time_stamp something like 07/17/98 14:42:09 for a
requirement that has surfaced.
I thought maybe something like:

$CurrentTime=exec`date +%D %T`;
print $CurrentTime;

Hope that jibberish above made sense :-/

Oh yeah... The perl version is rather old (v. 4.0.1.8). upgrading is not
an option for those solutions requiring version 5.x.
 Thanks for any help.

Please reply to [EMAIL PROTECTED] and the group...


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Re: simple perl question

[aqy6633]

 I thought maybe something like:
 
 $CurrentTime=exec`date +%D %T`;
 print $CurrentTime;
 

$CurrentTime=localtime(time);

Alex Y.
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RE: simple perl question

[Jeff Schreiber]

dave oswald [EMAIL PROTECTED] writes:

 Normally I would consult with my reference books but am not able to 
 get to them. 

Or you could just try it! :)

I thought maybe something like:

$CurrentTime=exec`date +%D %T`;
print $CurrentTime;


% perl -e '$CurrentTime = `date +%D %T`; print $CurrentTime'
07/17/98 22:10:42


-Jeff


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