#!/bin/bash
## time a command
# Remember start time
starttime=$(date +"%s")
# Place your command here, instead of my "sleep" command
sleep 1
# Remember end time
endtime=$(date +"%s")
# Calculate elapsed time
(( elapsed = endtime - starttime ))
# Display result - for debugging - optional
echo $elapsed
# Return exit status depending on time
if [ $elapsed -lt 5 ]
then
        exit 0
else
        exit 1
fi

#!/bin/bash

# Don't use shell built in time, because we want to format the output
# Redirection gymnastics because the output is to stderr
tfloat=$(/usr/bin/time -f %e chkfsys 2 2>&1)

# Strip off the decimal part so we can use integer comparison
tint=${tfloat%.*}

# Do the comparison
if [ $tint -lt 5 ] ; then
  exit 0
fi
exit 1

#!/bin/bash
chkfsys &

sleep 5

pkill chksfys
if [ "$?" = "0" ] ; then # chksys was killed
  exit 1
fi
exit 0