Bash script to clean up file names

clean-names

#!/bin/bash
#
# Often multimedia files downloaded from the internet contain
# as part of the filename things like the site from where they came
# the local language of the audio and such info that is not useful
# when you archive the file to your multimedia repository.
#
# This script renames a set of files, removing everything that does 
# not look like part of the file name
#
# The idea is that a file named 
#
#     My Wedding [www.sharefiles.com]by-Pete-Spanish.avi
#
# is renamed to
#
#     My Wedding.avi
#

until [ -z "$1" ]
do

    INPUTFILE=$(basename "$1")
    # Remove file extension assuming it is what is after the last dot in the filename
    FILENAME=$(echo $INPUTFILE | sed 's/\.[^.]*$//')
    # Keep the file extension to add it later
    INPUTFILELENGHT=${#INPUTFILE}
    FILENAMELENGTH=${#FILENAME}
    FILEEXTENSION=${INPUTFILE:$FILENAMELENGTH:$INPUTFILELENGHT-$FILENAMELENGTH}
    # Keep file in the same folder as it is now
    OUTDIR=$(dirname "$1")
    # Remove everything that appears after an open parenthesis or open bracket and replace dots with spaces
    OUTFILENAME=$(echo $FILENAME | sed "s/\[.*$//g" | sed -r "s/\(.*$//g" | sed "s/\./ /g" | sed "s/  / /g")
    OUTFILE=$OUTFILENAME$FILEEXTENSION
    COMMAND='mv '\"$1\"' '\"$OUTDIR/$OUTFILE\"

    eval $COMMAND

  shift
done

exit