BashUtils.sh

# 05_h.png >> 05_half.png
for file in *.png; do mv "$file" "${file/_h.png/_half.png}"; echo $f;done

# * >> *.mp4
for file in *; do mv "$file" "$file.mp4";done

# */*/ -rec >> remove *.pdf && *.doc
IFS=$'\n'; set -f ## To skip problem of directories with spaces
for f in $(find . -name '*.pdf' -or -name '*.doc'); do rm "$f"; echo $f;done
unset IFS; set +f

# rm empty Dirs
IFS=$'\n'; set -f
for f in $(find . -type d -empty);do rm -r "$f" ;echo $f;done
unset IFS; set +f