This script automatically converts a directory of video files to H.265 HEVC with HandBrake and deletes the old files.

to_hevc.sh

#!/bin/bash
#
# This script automatically converts a directory of video files to H.265 HEVC with HandBrake and deletes the old files. 
#   
if [ -z "$1" ]; then
  SRC="."
else
  SRC="$HOME/$1"
fi
find "$SRC" -iregex '.*\.\(mkv\|avi\)$' -exec bash -c 'HandBrakeCLI -i "$1" -o "${1%\.*}".mp4 -e x265 -q 22 -E av_aac --custom-anamorphic --keep-display-aspect' __ {} \; && find "$SRC" -iregex '.*\.\(mkv\|avi\)$' -exec rm -r {} \;
#
## Desktop notification
#
unameNote="$(uname -s)"
case "${unameNote}" in
    Linux*)
      notify-send "Encode complete."
      ;;
    Darwin*)
      osascript -e 'display notification "Encode complete." with title "HEVC Conversion"'
      ;;
    *)
      machine = "UNKNOWN:${unameOut}"
esac
echo ${desktopNotify}