Process display

dbadmin has asked for the wisdom of the Perl Monks concerning the following question:

Hi,
I am very new to perl. I have a script which needs some java process running in the UNIX server. One part of the script uses perl and it executes good in HPUX, but when I use the same in AIX I am not getting any output.

the unix processes name look like this when I do ps -ef |grep co_java

co_java_xxx
co_java_yyyy
co_java_mmmmm
etc...
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The script goes like this

ps -ef | /u/gnu/bin/perl -ne 'print $2 if /.*(\bco_java_)(\w+\n)/'
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The output of this perl script should gives me the process name like below in HPUX

xxx
yyyy
mmmmm
etc...
[download]

And in AIX no output comes out. Is there any code which I can use in HPUX and AIX to display this information?

Any help is really appreciated

dbadmin

20051020 Janitored by Corion: Added formatting

Comment on Process display Select or Download Code

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Re: Process display by northwind (Hermit) on Oct 20, 2005 at 18:52 UTC
Your problem centers on `ps` having different flags on different systems. Check out ppk for some inspiration (don't look too hard though, the code is from when I was beginning in Perl). I know the code does not do what you are wanting, but it does deal with `ps` having differnt flags on different systems.	[reply]
Re: Process display by ikegami (Patriarch) on Oct 20, 2005 at 19:30 UTC
By the way, `print $2 if /.*(\bco_java_)(\w+\n)/` is less efficient and less readable than `print $1 if /\bco_java_(\w+\n)/`	[reply] [d/l] [select]
Re^2: Process display by Anonymous Monk on Oct 20, 2005 at 20:21 UTC
Hi, Thanks for the quick response everyone. The ps -ef output is like below juserl 8593596 1 0 Oct 15 - 0:43 co_java_for03 - AIX juserl 23107 1 0 Oct 15 ? 1:15 co_java_burl9 - HPUX I think both these outputs looks same, but how perl interprets it I am not sure. Thanks, dbadmin	[reply]
Re^3: Process display by ikegami (Patriarch) on Oct 20, 2005 at 21:43 UTC
if that's true, the code you presented would work. Is the path to Perl correct? Are there trailing spaces in the output?	[reply]
Re^4: Process display by dbadmin (Initiate) on Oct 21, 2005 at 14:37 UTC
Re^5: Process display by ikegami (Patriarch) on Oct 21, 2005 at 14:53 UTC
Re: Process display by amw1 (Friar) on Oct 20, 2005 at 18:48 UTC
Is the output of ps -ef identical on both HPUX and AIX? I suspect the issue lies there.	[reply]
Re: Process display by blazar (Canon) on Oct 21, 2005 at 10:42 UTC
Since nobody has mentioned it yet, and you're processing the output of `ps(1)`, you may be interested in (knowing about and possibly) using Proc::ProcessTable.	[reply] [d/l]