# 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
$
cheat.sh
tldr