Hi All
I am quite new to nagios and am having an issue with memory checking using nrpe on an ubuntu 10.4 server. I have a script which works on a centos box but can’t get anything to work on the ubuntu box.
I found a site with a script and details of config (main script at bottom) serverfault.com/questions/195815 … figuration
I have it all setup but I can’t get any repsonce if i run command[check_memory]=/usr/lib/nagios/plugins/check_memory.sh -w 85 -c 90
i get this -w: command not found
Can anyone help here
Thanks
Glenn
#!/bin/bash
Script to check memory usage on Linux. Ignores memory used by disk cache.
Requires the bc command
print_help() {
echo "Usage:"
echo "-w] Warning level as a percentage"
echo "-c] Critical level as a percentage"
exit 0
}
while test -n “$1”; do
case “$1” in
–help|-h)
print_help
exit 0
;;
-w)
warn_level=$2
shift
;;
-c)
critical_level=$2
shift
;;
*)
echo "Unknown Argument: $1"
print_help
exit 3
;;
esac
shift
done
if “$warn_level” == “” ]; then
echo "No Warning Level Specified"
print_help
exit 3;
fi
if “$critical_level” == “” ]; then
echo "No Critical Level Specified"
print_help
exit 3;
fi
free=free -m | grep "buffers/cache" | awk '{print $4}'
used=free -m | grep "buffers/cache" | awk '{print $3}'
total=$(($free+$used))
result=$(echo “$used / $total * 100” |bc -l|cut -c -2)
if “$result” -lt “$warn_level” ]; then
echo "Memory OK. $result% used."
exit 0;
elif “$result” -ge “$warn_level” ] && “$result” -le “$critical_level” ]; then
echo "Memory WARNING. $result% used."
exit 1;
elif “$result” -gt “$critical_level” ]; then
echo "Memory CRITICAL. $result% used."
exit 2;
fi