batch make md5 check sum for files (find -exec)

make_md5.sh

#!/bin/bash

b=`basename "$1"`
d=`pwd`

echo "[RUN] Check [$b] $d/$1"

if [ -f "$1" ]; then
   if [ -s "$1.md5" ]; then
      s=`cat "$1.md5" | awk '{print $1}'`
   else
      echo "[RUN] Rebuilt $1 md5sum"
      s=`md5sum "$1" | awk '{print $1}'`
      echo "$s  $b" > "$1.md5"
   fi
   echo "[MD5] $s"
fi