Inspect file descriptors for the selected process.
Section: Inspection tools
List open files with lsof
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lExplanation
Useful for sockets, logs, deleted files still held open, and lock files.
Learn the surrounding workflow
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
Trace system calls with strace
Attach strace to the selected process if installed.
Attach strace manually
Use the PID from htop with a direct shell command.
Inspect CPU affinity from the shell
Complement htop when tracking placement or pinning.