rename_tv_shows.sh

#!/bin/bash
ext=$1
if [ ! $ext ]; then
  ext="avi"
fi
FILES=`find . -iname "*.$ext" -printf "%p\n"`
IFS="
"
for i in $FILES; do

dirname=`dirname $i`
g=`echo $i|perl -e '<STDIN> =~ m/S\d?(\d)E(\d+)/i; $1 and  print $1 . "x" . $2'`

if [ ! $g ]; then
  g=`echo $i|perl -e '<STDIN> =~ m/(\d)x(\d\d)/i; $1 and  print $1 . "x" . $2'`
fi
if [ ! $g ]; then
g=`echo $i|perl -e '<STDIN> =~ m/(\d)(\d\d)/i; $1 and print $1 . "x" . $2;'`
fi
if [ ! $g ]; then
  g=`echo $i|perl -e '<STDIN> =~ m/(\d\d)/i; $1 and print "1x" . $1'`
fi

if [ $g ]; then
 g="$dirname/$g.$ext"
 if [[ "$g" != "$i" ]]; then
   echo "if [ ! -e \"$g\" ]; then mv  \"$i\" \"$g\"; fi"
 fi
fi

done