inotifywait

Waits for changes to one or more files.

TLDR

Watch a specific file for events, exiting after the first one

$ inotifywait [path/to/file]
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Continuously watch a specific file for events without exiting
$ inotifywait --monitor [path/to/file]
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Watch a directory recursively for events
$ inotifywait --monitor --recursive [path/to/directory]
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Watch a directory for changes, excluding files, whose names match a regular expression
$ inotifywait --monitor --recursive --exclude "[regular_expression]" [path/to/directory]
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Watch a file for changes, exiting when no event occurs for 30 seconds
$ inotifywait --monitor --timeout [30] [path/to/file]
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Only watch a file for file modification events
$ inotifywait --event [modify] [path/to/file]
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Watch a file printing only events, and no status messages
$ inotifywait --quiet [path/to/file]
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Run a command when a file is accessed
$ inotifywait --event [access] [path/to/file] && [command]
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