tldr/pages/common/lsof.md

lsof

Lists open files and the corresponding processes Note: In most cases, you need root privilege (or use sudo) because you want to list files opened by others

• 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 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}}