find if program is running

sharathkv25 · 06-27-2007, 07:26 AM

Hi,

I want to find if a particular program is running. The program name is tpsnmp. It is not running at the moment. I have similar named programs that are running.

ps -ef gives me this result:

#ps -ef | grep tpsnmp
root 25795 1 0 Jun 25 ? 0:00 /opt/osmf/SNMP/bin/tpsnmpmad
root 25796 1 0 Jun 25 ? 0:00 /opt/osmf/SNMP/bin/tpsnmpd

In this case I should be no output. How to make this possible?

Thanks

b0uncer · 06-27-2007, 07:30 AM

Code:

ps -ef | grep tpsnmp$

Does that work better? Sorry I have no Linux/Unix around so can't test, but I recall that dollar sign meant "line ends with this". If it's not enough, you can use cut, sed or awk and grep's ^ before the string which means "line starts with this", or combine those.

nx5000 · 06-27-2007, 07:37 AM

Code:

 pgrep -x tpsnmp &> /dev/null && echo "running" || echo "not running"

Depending on the OS, there is also pidof

Hobbletoe · 06-27-2007, 07:40 AM

Actually, for a regular expression, you may need to use 'grep -e', or egrep. Put your regular expression in quotes.

Code:

ps -ef | egrep 'tpsnmp$'

I think you could also use the -w option for grep here which means that the string must be the beginning of the line or a non-word character, or that it must be at the end of the line or followed by a non-word character or both.

Code:

ps -ef | grep -w tpsnmp

You might also want to exclude grep from your returns to make the output a bit clearer.

Code:

ps -ef | grep -v grep | grep -w tpsnmp

dive · 06-27-2007, 01:28 PM

Try 'pgrep tpsnmp'

nx5000 · 06-29-2007, 04:49 AM

Quote:

Originally Posted by dive

Try 'pgrep tpsnmp'

pgrep -x tpsnmp