Update cheatsheets

linux/fuser

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# fuser
+
+> Display process IDs currently using files or sockets.
+> More information: <https://manned.org/fuser>.
+
+- Find which processes are accessing a file or directory:
+
+`fuser {{path/to/file_or_directory}}`
+
+- Show more fields (`USER`, `PID`, `ACCESS` and `COMMAND`):
+
+`fuser --verbose {{path/to/file_or_directory}}`
+
+- Identify processes using a TCP socket:
+
+`fuser --namespace tcp {{port}}`
+
+- Kill all processes accessing a file or directory (sends the `SIGKILL` signal):
+
+`fuser --kill {{path/to/file_or_directory}}`
+
+- Find which processes are accessing the filesystem containing a specific file or directory:
+
+`fuser --mount {{path/to/file_or_directory}}`
+
+- Kill all processes with a TCP connection on a specific port:
+
+`fuser --kill {{port}}/tcp`