A filewatcher
$ brew tap broothie/filewatcher
$ brew install filewatcher
$ filewatcher --help
usage: main [<flags>] <command>
Flags:
--help Show context-sensitive help (also try --help-long and --help-man).
-g, --glob="*" files to watch
-r, --root="." directory root to watch from
Args:
<command> command to run on file change