How to dtermine disk space in Linux

[Kevin Keane]

I'm not sure what 3 plugins you are trying. I am using a bash script 
with a little df and awk thrown in:

The whole script does a lot more, but the key part is this:

The critical and warn percentages are in $CDISKUSAGE and $WDISKUSAGE, 
respectively.

Note that this will check all file systems, including CDROM, removable 
disks, etc. So you may need to modify the call to df a bit to make it 
work for you. Hint: try the -t or -x arguments to check only the file 
systems you are interested in.

function checkdiskspace()
{
   local retval
   df -Ph | awk " { if(int(\$5)>=$CDISKUSAGE) { print \"CRIT\", 
\$0,\"<br>\" } else if (int(\$5)>=$WDISKUSAGE) {print \"WARN\", 
\$0,\"<br>\" } }" > /tmp/$$
   cat /tmp/$$
   retval=0
   grep "^CRIT " /tmp/$$ >/dev/null
   if [ $? -eq 0 ]
   then
      retval=2
   else
      grep "^WARN " /tmp/$$ >/dev/null
      if [ $? -eq 0 ]
      then
          retval=1
      else
          echo "All disks OK"
      fi
   fi
   rm -f /tmp/$$
   return $retval
}


Edwin Zoeller wrote:
> I hope someone can help and explain this to me. I am trying to use one
> of three plugins for Nagios to check disk space on a Linux file system.
> When I plug in values that I thinks would work, I don't understand what
> its telling me. Can someone shed some lite. I am used to the plugins on
> Solaris which you can set up a percentage, much easier.
>
> Thanks

-- 
Kevin Keane
Owner
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