Inspect file descriptors for the selected process.

Section: Inspection tools

List open files with lsof

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Explanation

Useful for sockets, logs, deleted files still held open, and lock files.

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Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.

Related commands

Same sheet · prioritizing Inspection tools
List files for a PID manually
Use lsof directly from the shell.
OpenIn sheetbashsame section
Trace system calls with strace
Attach strace to the selected process if installed.
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Display file locks
Inspect active file locks for the selected process.
OpenIn sheettextsame section
Attach strace manually
Use the PID from htop with a direct shell command.
OpenIn sheetbashsame section
Inspect CPU affinity from the shell
Complement htop when tracking placement or pinning.
OpenIn sheetbashsame section
Increase priority
Lower the nice value of the selected process.