inotifywait

Waits for changes to one or more files.

• Run a command when a file changes:

while inotifywait {path/to/file}; do {command}; done

• Be quiet about watching for changes:

while inotifywait --quiet {path/to/file}; do {command}; done

• Watch a directory recursively for changes:

while inotifywait --recursive {path/to/directory}; do {command}; done

• Exclude files matching a regular expression:

while inotifywait --recursive {path/to/directory} --exclude '{regular_expression}'; do {command}; done

• Wait at most 30 seconds:

while inotifywait --timeout {30} {path/to/file}; do {command}; done

• Only watch for file modification events:

while inotifywait --event {modify} {path/to/file}; do {command}; done

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