Cron script hogging cpu

[chindi]

Hi,

We have scron scripts in cron which application users call their profile and execute some scripts.

What we have observed is that for one host when its running its shoots sys% to 75% in top.

What could be the reason ?

Script is shown below:

#!/bin/ksh
trap "" 1 2 3 15
set -e
REALNAME=`id | cut -d"(" -f2 | cut -d")" -f1`
exit_value=1
if [ -r /nos/ure/$1 ] ; then
for i in `cat /nos/ure/$1`
do
if [ "$i" = "$REALNAME" ] ; then
exit_value=0
break
fi
done
fi
exit $exit_value

[Steven Schweda]

> What could be the reason ?

   I don't know.  Almost anything?  What's "$1"?  What's in
"/nos/ure/$1"?  What happens when you run the script interactively on
these systems?  (You can test your script on your systems in your
environment more easily than anyone here can.)

> [...] users call their profile [...]

   Do all users have see the same behavior?  What's in "their profile"?
Is the script causing the problem, or is "their profile" causing it?

[Dennis Handly · Accepted solution]

What command does top(1) show is using that amount of CPU?

Also, why aren't you using "fgrep -x -q' to find your ID in that file?