AIX

#!/bin/ksh
 
used_space=0
mount_point=${1:-"/tmp"}
threshold=${2:-10}
 
used_space=`df -k $mount_point | grep % | awk {'print $5'} | sed 's/%//g'`
print "Free Space available under \"$mount_point\" is `expr 100 - $used_space`%.\n"
 
if [ $used_space -gt $threshold ]
then
   print "Space Utilization on \"$mount_point\" has exceeded the threshhold of $
{threshold}%.\n"
else
   print "Free space on \"$mount_point\" is in normal parameters."
fi

expr: 0402-046 A specified operator requires numeric parameters.
Free Space available under "/tmp" is %.
 
run_rman_script_fs_check[12]: 830: 0403-012 A test command parameter is not valid.

#!/bin/ksh
 
used_space=0
mount_point=${1:-"/tmp"}
threshold=${2:-10}
 
used_space='df -k $mount_point | grep % | awk '{print $5}' | sed 's/%//g''
print "Free Space available under \"$mount_point\" is `$used_space`%.\n"

run_rman_script_fs_check[7]: } | sed s/%//g:  not found.
run_rman_script_fs_check[8]: 0:  not found.
Free Space available under "/tmp" is %.

used_space="df -k $mount_point | grep % | awk '{print $5}' | sed 's/%//g'"

df -k $mount_point | grep % | awk {'print $5'} | sed 's/%//g'

x-4-1-test# df -k /tmp | grep % | awk {'print $5'} | sed 's/%//g'
Iused
774

df -k /tmp | grep % | awk '{print $5}' | sed 's/%//g'

expr 100 - $used_space`%.\n