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 IPv6 TCP port and don't convert network or port numbers:
lsof -i6TCP:{{port}} -sTCP:LISTEN -n -P
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