不可視ファイルのON/OFF

show_all_files.sh

#!/bin/bash

case "$1" in
  true)
        defaults write com.apple.finder AppleShowAllFiles TRUE
        killall Finder
        ;;
  false)
        defaults write com.apple.finder AppleShowAllFiles FALSE
        killall Finder
        ;;
  *)
        echo $"Usage: $0 {true|false}"
        exit 1
esac

exit 0