a simple bash script to batch rename television files

tv_rename.sh

#!/bin/bash
#
# Written by Anthony Lobianco, 01/23/2014
#
# A simple script to batch rename television files
#
# USAGE
# -----
# chmod a+x tv_rename.sh
# ./tv_rename.sh -d /path/to/show/S01
#
# CHANGELOG
# ---------
#
# 1.0.0
# -----
# initial commit
#
# 1.0.1
# -----
# check to make sure input directory exists
#
# 1.0.2
# -----
# handle file types other than .mkv
# make sure new format has same extension as old file
# make sure new format includes the SXXEYY placeholder
#
# 1.0.3
# -----
# if SXXEYY pattern is not present, automatically determine it from filename
#

VRS=1.0.3

bold=`tput bold`          # bold characters in echo
normal=`tput sgr0`        # normal characters in echo

echo " "
echo "BATCH RENAME SCRIPT v$VRS"
echo -n "server: "
echo $SSH_CONNECTION | awk '{print $3}'
echo " "

DIR=""

while getopts ":d:" OPTION
do
    case $OPTION in
        d)
	    if [ "$OPTARG" = "." ]; then
	        DIR=`pwd`
	    else
	        DIR="$OPTARG"
	    fi
	;;	
    esac
done

if [ "$DIR" = "" ]; then
    echo "no directory specified (use -d /path/to/directory/)"
    echo "EXIT"
    exit 1
elif [ ! -d "$DIR" ]; then
    echo "$DIR does not exist"
    echo "EXIT"
    exit 1
fi

echo -e "renaming files in:\t ${bold}${DIR}${normal}"

LAST_FILE=`ls -l "$DIR" | tail -1 | awk '{print $NF}'`
FILE_TYPE=`basename $LAST_FILE | awk -F . '{print $NF}'`

echo -e "last file looks like:\t ${bold}${LAST_FILE}${normal}\n"

rename_files() {
    local format=$1
    local dry_run=$2

    # find SXXEYY pattern
    REGEX="([sS]([0-9]{2,}|[X]{2,})[eE]([0-9]{2,}|[Y]{2,}))"
    if [[ ! $format =~ $REGEX ]]; then
        echo "could not find SXXEYY pattern in new format"
	echo " "
	continue
    else
        MATCH="${BASH_REMATCH[1]}"
    fi

    # needed if directory name has whitespace (e.g. /media/Family Guy/)
    SAVEIFS=$IFS
    IFS=$(echo -en "\n\b")

    SEASON=`basename "$DIR"`
    EPISODE=1
    for ITEM in $(find "$DIR" -type f -name "*.${FILE_TYPE}" | sort); do
        if (( $EPISODE < 10 )); then
	    SE="${SEASON}E0${EPISODE}"
	else
	    SE="${SEASON}E${EPISODE}"
	fi

	if [[ $MATCH != $SE ]]; then
	    FILE="${format/$MATCH/$SE}"
	else
	    FILE=$format
	fi

	# list the files during dry run, rename them otherwise
	if $dry_run; then
	    echo -e " mv `basename $ITEM` \n -> $FILE"
	else
	    if [[ `basename $ITEM` == $FILE ]]; then
	        echo "rename not needed for `basename $ITEM`"
	    else
	        echo -e "renaming $ITEM \n to -> \t $DIR/$FILE"
		mv $ITEM "$DIR/$FILE"
	    fi
	fi

	echo " "

	EPISODE=$((EPISODE + 1))
    done

    IFS=$SAVEIFS
}

echo "what format do you want to use to rename files?"
echo -e "(ex: Breaking.Bad.SXXEYY.1080p.BluRay.DTS.x264-rovers.mkv)\n"

while read -ep "[format]: " FORMAT
do
    echo " "

    # do some error checks
    if [[ $FORMAT != *.${FILE_TYPE} ]]; then
        echo "make sure new format has same file type extension (.${FILE_TYPE})"
	echo " "
	continue
    fi

    rename_files $FORMAT true

    echo " "

    while read -ep "[continue? y/n]: " CONTINUE
    do
        if [[ $CONTINUE = y ]]; then
	    break
	else
	    continue 2
	fi
    done

    echo " "

    rename_files $FORMAT false

    break
done

echo " "
echo "DONE"
exit 0

Loops through all files in a directory and renames them according to the new format you specify. For instance, change:

breaking.bad.s02e01.mkv
breaking.bad.s02e02.mkv
breaking.bad.s02e03.mkv
...

to:

Breaking.Bad.S02E01.1080p.BluRay.x264.mkv
Breaking.Bad.S02E02.1080p.BluRay.x264.mkv
Breaking.Bad.S02E03.1080p.BluRay.x264.mkv
...

using format:

Breaking.Bad.SXXEYY.1080p.BluRay.x264.mkv

The directory passed to the script should be a season directory similar to SXX (e.g. /files/tv/Breaking_Bad/S01)

@lobianco Hey, I jus found this script. This is so awesome, thank you for this.

But Is it possible to rename with spaces?
Like from Breaking.Bad.s01e01.mkv
to Breaking Bad S01E01 Bluray x264 ROVERS.mkv

simple but useful, thank you!