fswatch

A cross-platform file change monitor. More information: https://emcrisostomo.github.io/fswatch.

• Run a Bash command on file creation, update or deletion:

fswatch {{path/to/file}} | xargs {{[-n|--max-args]}} 1 {{bash_command}}

• Watch one or more files and/or directories:

fswatch {{path/to/file}} {{path/to/directory}} {{path/to/another_directory/**/*.js}} | xargs {{[-n|--max-args]}} 1 {{bash_command}}

• Print the absolute paths of the changed files:

fswatch {{path/to/directory}} | xargs {{[-n|--max-args]}} 1 -I _ echo _

• Filter by event type:

fswatch --event {{Updated|Removed|Created|...}} {{path/to/directory}} | xargs {{[-n|--max-args]}} 1 {{bash_command}}