Bulk Rename Files

rename.sh

#!/bin/bash
# File: rename
# Author: Chris Albrecht (chris at lullabot dot com)
#
# Bulk renaming of files.

FROM=$1
TO=$2
FILTER=$3

if [[ -z "$FROM" ]] || [[ -z "$TO" ]]; then
  echo "Usage: rename <from> <to> [\"<filter>\"] "
  exit 1
fi

# If no mask is set, get all files in the current dir.
if [[ -z "$FILTER" ]]; then
  FILTER="*"
fi

for ORIG in $FILTER
do
  if [[ -f $ORIG ]] || [[ -d $ORIG ]]; then
    NEW=${ORIG/$FROM/$TO}

    # If the new filename would be different, rename the file.
    if [[ $NEW != $ORIG ]]; then
      echo "$ORIG >> $NEW"
      mv "$ORIG" "$NEW"
    fi
  fi
done