Difference between revisions of "Lsof"

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*  <code>lsof /path/to/file</code> or <code>lsof /path/to/dir</code> or <code>lsof [[/dev/]]sdc1</code>
 
*  <code>lsof /path/to/file</code> or <code>lsof /path/to/dir</code> or <code>lsof [[/dev/]]sdc1</code>
 
*  <code>lsof -t /path/to/file</code>
 
*  <code>lsof -t /path/to/file</code>
::-t terse output with process identifiers only and no header
+
::<code>-t</code> terse output with process identifiers only and no header
  
 
=== Files related ===
 
=== Files related ===

Revision as of 09:44, 22 September 2020

wikipedia:lsof[1] list open files and network connections.


Basic commands

  • lsof /path/to/file or lsof /path/to/dir or lsof /dev/sdc1
  • lsof -t /path/to/file
-t terse output with process identifiers only and no header

Files related

List all open files by a specific process:

  • lsof -p PID
  • lsof -u USERNAME
  • lsof -a +L1 /path/to/fs (shows open, unlinked files) or lsof -nP | grep '(deleted)'

Network related

Open TCP ports:

  • lsof -iTCP -sTCP:LISTEN -P -n

Open UDP ports:

  • lsof -iUDP -P -n
  • macOS: sudo lsof -iTCP -sTCP:LISTEN -n -P

Related commands

Activities

  1. Read lsof questions on StackExchange: https://unix.stackexchange.com/questions/tagged/lsof?tab=Votes
  2. Review further examples in https://www.thegeekstuff.com/2012/08/lsof-command-examples/
  3. Read https://www.akadia.com/services/lsof_quickstart.txt

See also

  • http://man7.org/linux/man-pages/man8/lsof.8.html
  • https://www.thegeekstuff.com/2012/08/lsof-command-examples/
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