[Work] shell programming

Counting files greater than a certain size

#!/bin/sh
# others/countsize
case $# in
0) echo 'Usage: ' $prog ''; exit 1;;
esac

limit=$1
count=0
for f in *
do
  if test -f $f
      then
      size=`ls -s $f| awk '{print $1}'`
      if  test $size -ge $limit
   then
   count=$[count+1]
   echo $f
      fi
  fi
done
echo $count "files bigger than " $limit"K"