Mac OS script for watching a random movie

watch_random_movie.sh

#!/usr/bin/env bash

# Mac OS
# Fun script to view random movie from given directory recursively
# Maybe you want to watch a random Friends episode :)
# Script depends on VLC media player(https://www.videolan.org/vlc/index.ru.html)

if [ $# -ne 1 ]; then
  echo "Usage: $0 /path/to/movies/directory"
  exit 1
fi
directory=$1

movies=()

# you can find and manage own file extensions with following one liner
# find . -type f -exec sh -c 'echo "${0##*.}"' {} \; | sort | uniq
while IFS= read -r -d $'\0'; do
  movies+=("$REPLY")
done < <(find "$directory" -type f   \
-iname '*.mkv' -print0 -o  \
-iname '*.webm' -print0 -o \
-iname '*.flv' -print0 -o  \
-iname '*.vob' -print0 -o  \
-iname '*.ogg' -print0 -o  \
-iname '*.ogv' -print0 -o  \
-iname '*.drc' -print0 -o  \
-iname '*gifv' -print0 -o  \
-iname '*.mng' -print0 -o  \
-iname '*.avi' -print0 -o  \
-iname '*.mov' -print0 -o  \
-iname '*.qt' -print0 -o   \
-iname '*.wmv' -print0 -o  \
-iname '*.yuv' -print0 -o  \
-iname '*.rm' -print0 -o   \
-iname '*.rmvb' -print0 -o \
-iname '*.asf' -print0 -o  \
-iname '*.amv' -print0 -o  \
-iname '*.mp4' -print0 -o  \
-iname '*.m4v' -print0 -o  \
-iname '*.mp' -print0 -o   \
-iname '*.m?v' -print0 -o  \
-iname '*.svi' -print0 -o  \
-iname '*.3gp' -print0 -o  \
-iname '*.flv' -print0 -o  \
-iname '*.mpg' -print0 -o  \
-iname '*.f4v' -print0     \
)

array_length=${#movies[@]}
if [ $array_length -eq 0 ]; then
  exit 0
fi

random_index=$(($RANDOM % array_length))

open -a vlc "${movies[$random_index]}"