fs/check-fs-usage.sh

   1 #!/bin/sh
   2
   3 if [ $# -lt 2 ]
   4 then
   5         echo "Usage: $0 <fs> <percentage> [email]"
   6         echo "Where"
   7         echo "  fs              - file system to check"
   8         echo "  percentage      - acceptable file system usage treshold"
   9         echo "  email           - send warning to specified e-mail address (print to stdout, if omitted)"
  10         echo "Example: $0 / 95 admin@cutekittens.tld"
  11         exit
  12 fi
  13
  14 if [ $(df -m $1 | sed 1d | awk '{print $5}' | sed "s/%//") -ge $2 ]
  15 then
  16         subject="WARNING! File system usage ($1) on $(hostname) is higher than $2 percent!"
  17         if [ -z "$3" ]
  18         then
  19                 echo ${subject}
  20                 df -m
  21         else
  22                 df -m | mail -s "${subject}" $3
  23         fi
  24 fi