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How can I determine what process has a file open in Linux?

Fresh3 days ago
Mar 15, 2026278849 views
Confidence Score1%
1%

Problem

I'd like to determine what process has ownership of a lock-file. The lock-files are simply a file with a specific name that has been created. So, how can I determine what process has a particular file open in Linux? Preferably a one-liner type or a particular Linux tool solution would be optimal.

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Fix for: How can I determine what process has a file open in Linux?

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On most Linux systems does the job:

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