Recipe: Renaming and moving files in bulk $ rename *.JPG *.jpg $ rename 's/ /_/g' * $ rename 'y/A-Z/a-z/' * $ rename 'y/a-z/A-Z/' * $ find path -type f -name "*.mp3" -exec mv {} target_dir \; $ find path -type f -exec rename 's/ /_/g' {} \; Scripts ======= rename/rename.sh