tldr/pages/common/lsof.md

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# lsof
> Lists open files and the corresponding processes.
> Note: Root privileges (or sudo) is required to list files opened by others.
> More information: <https://manned.org/lsof>.
- Find the processes that have a given file open:
`lsof {{path/to/file}}`
- Find the process that opened a local internet port:
`lsof -i :{{port}}`
- Only output the process ID (PID):
`lsof -t {{path/to/file}}`
- List files opened by the given user:
`lsof -u {{username}}`
- List files opened by the given command or process:
`lsof -c {{process_or_command_name}}`
- List files opened by a specific process, given its PID:
`lsof -p {{PID}}`
- List open files in a directory:
`lsof +D {{path/to/directory}}`
- Find the process that is listening on a local TCP port:
`lsof -iTCP:{{port}} -sTCP:LISTEN`