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watchman — A service that watches files, and triggers actions when changes occur. More information: <https://fa

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the watchman command: A service that watches files, and triggers actions when changes occur. More information: <https://facebook.github.io/watchman/docs/cli-options>.

Solution

watchman — A service that watches files, and triggers actions when changes occur. More information: <https://facebook.github.io/watchman/docs/cli-options>.

Infer the root directory of the project containing the specified directory, and watch its files and sub-folders for changes:

watchman watch-project {{path/to/directory}}

Add a trigger to run a command when files with a specified filename pattern in a watched directory change:

watchman -- trigger {{path/to/watched_directory}} {{trigger_name}} '{{pattern}}' -- {{command}}

List all watched directories:

watchman watch-list

Delete a watch on a directory and its associated triggers:

watchman watch-del {{path/to/watched_directory}}

Delete all watched directories and triggers:

watchman watch-del-all

List all triggers on a watched directory:

watchman trigger-list {{path/to/watched_directory}}

Delete a trigger from a watched directory:

watchman trigger-del {{path/to/watched_directory}} {{trigger_name}}

Temporarily stop watchman, until the next time you call a watchman command:

watchman shutdown-server

Code Snippets

Infer the root directory of the project containing the specified directory, and watch its files and sub-folders for changes

watchman watch-project {{path/to/directory}}

Add a trigger to run a command when files with a specified filename pattern in a watched directory change

watchman -- trigger {{path/to/watched_directory}} {{trigger_name}} '{{pattern}}' -- {{command}}

List all watched directories

watchman watch-list

Delete a watch on a directory and its associated triggers

watchman watch-del {{path/to/watched_directory}}

Delete all watched directories and triggers

watchman watch-del-all

Context

tldr-pages: common/watchman

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