topic Re: find the uptime of a process in Operating System - Linux

find the uptime of a process

labadie_1 — Wed, 22 Nov 2006 07:16:04 GMT

I know that in /proc/pid/fd I find the files opened by a process.

I would like to know when a process has been created, or the uptime of the process.

Is this info available somewhere ?

Thanks for any hint

Re: find the uptime of a process

Steven E. Protter — Wed, 22 Nov 2006 07:24:20 GMT

Shalom,

ps -ef | grep process_name

UNIX95=1
ps -C

there are a while array of ps commands to tell you process details.

SEP

Re: find the uptime of a process

labadie_1 — Wed, 22 Nov 2006 07:39:04 GMT

Hello

The basic ps -ef seems to show the day, not the exact date, but it should be close enough :-)

I have a prehistorical Red Hat Entreprise 7.3 and ps -C is not available.

What do you mean with Unix95=1 ?

Re: find the uptime of a process

labadie_1 — Wed, 22 Nov 2006 07:57:27 GMT

ps -o "%t" 28730

gives exactly what I want for the process 28730

thanks.

Re: find the uptime of a process

Victor Semaska_3 — Wed, 22 Nov 2006 08:58:18 GMT

labadie,

There's also this command to see the creation date/time of processes:

# ps -eo user,pid,lstart,cmd

Vic

Re: find the uptime of a process

labadie_1 — Wed, 22 Nov 2006 09:01:53 GMT

It doesn't work with Red Hat 7.3

ps: error: Unknown user-defined format specifier.
usage: ps -[Unix98 options]
ps [BSD-style options]
ps --[GNU-style long options]
ps --help for a command summary

:-(