topic Re: checking conditions in Operating System - HP-UX

checking conditions

Scott E Smith — Thu, 11 Oct 2001 15:48:51 GMT

Here we go again. I have a script that generates a list of running processes that meet certain criteria. I need to see if any of the process names are on a list of processes. To clarify, if any of these processes are on the list then I need to take additional action. I have an if statement running in a do loop but how do I do a string comparison against a list of programs. The list is like abc,def,ghi,jkl,mno. If the process name is any of those then I need to go to the next process for comparison. Clear as mud? Thanks.

Re: checking conditions

Bill McNAMARA_1 — Thu, 11 Oct 2001 15:51:39 GMT

function _not_running {
RUNNING=$(ps -ef|grep "$0"|grep -v grep|grep -v $$|grep -v man)
if [[ "$RUNNING" != "" ]]
then
PID=$(echo ${RUNNING} | awk {"print \$2;exit"})
echo "\nERROR: The tool is already running under pid: ${PID}\n"
echo "You must wait until it completes.\n"
exit 1
fi
}

you can modify the important bit into your loop with
for i in $(ps -ef | grep.... $LIST)
do

done

Later,
Bill

Re: checking conditions

harry d brown jr — Thu, 11 Oct 2001 16:04:44 GMT

in ksh:

if [ ?( "abc" "def" "ghi" ) ]
then
# match

Re: checking conditions

Sridhar Bhaskarla — Thu, 11 Oct 2001 16:08:47 GMT

Scott,

Consider using XPG4 version of ps. It is a very good tool for this kind of checks.

UNIX95= ps -e -o "args" |sort >> running_procs

You can use this output to tackle your problem

Now you can use your list to compare what's in there.

STAMP=0
for PROC in `cat my_list`
do
grep $PROC running_procs > /dev/null 2>&1
if [ $? = 0 ]
then
echo "PROC is running"
STAMP=1
fi
done

if [ $STAMP = 1 ] (This means atleast one of the processes that are there in the list is running)

then
do_whatever_you_want
fi

Does this help?.

-Sri

Re: checking conditions

Scott E Smith — Thu, 11 Oct 2001 16:18:45 GMT

Question,
Harry, Is there a bin/sh format for that example?

Re: checking conditions

Carlos Fernandez Riera — Thu, 11 Oct 2001 17:34:21 GMT

ps -aef | grep -e "abd" -e "cde" -e ....

find processes

ps -aef | grep -v -e "abd" -e "cde" -e ....

Find all process except..

Re: checking conditions

harry d brown jr — Thu, 11 Oct 2001 19:55:22 GMT

If someone doesn't answer that today, I'll try to answer that tomorrow morning.