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 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 1 bash_command

• Print the absolute paths of the changed files:

fswatch path/to/directory | xargs -n 1 -I {} echo {}

• Filter by event type:

fswatch --event Updated|Removed|Created|… path/to/directory | xargs -n 1 bash_command