Command-line tool

fswatch

brew/fswatch

Checked 25 Oct 2026, 21:09 UTC · Listing refreshed from Homebrew, winget, npm, Scoop and cargo; npm packages checked against OSV.dev

Monitor a directory for changes and run a shell command

At a glance

Windows

winget install --id emcrisostomo.fswatch -e

macOS

brew install fswatch

Linux

brew install 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 _

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