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Top Forums Shell Programming and Scripting need to check if the process is running Post 302548491 by shifahim on Thursday 18th of August 2011 02:17:28 PM
Old 08-18-2011
Question need to check if the process is running

Hi,

I check if the process is running or not using the below.

Code:
 /usr/ucb/ps auxww | grep 10[9]9 |grep rmi |  awk '{print $2}'
9718

Thus we see 9718 is the PID.
It return blank if the process is not running.

I need to perform some action [start the process] if the process is not running and leave it if it is already running.

Can you please help me with the syntax?
 

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ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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