lslocks

lists information about all file locks held on the local system

TLDR

List all locks

$ lslocks

List with specific columns

$ lslocks -o PID,COMMAND,PATH

Raw output without headers

$ lslocks --raw --noheadings

List locks for specific PID

$ lslocks --pid [pid]

Output as JSON

$ lslocks --json

SYNOPSIS

lslocks [options]

DESCRIPTION

lslocks lists information about all file locks held on the local system. It shows advisory and mandatory locks, the holding process, and lock details.

PARAMETERS

-o, --output COLUMNS

Specify output columns

-p, --pid PID

Show locks for specific process

-J, --json

JSON output format

-r, --raw

Raw output without formatting

-n, --noheadings

Suppress column headers

-u, --notruncate

Don't truncate output

OUTPUT COLUMNS

COMMAND: Process namePID: Process IDTYPE: Lock type (FLOCK, POSIX, LEASE)SIZE: Size of locked regionPATH: Locked file path

INSTALL

sudo apt install util-linux

sudo dnf install util-linux

sudo pacman -S util-linux

sudo apk add util-linux-misc

sudo zypper install util-linux

brew install util-linux

nix profile install nixpkgs#util-linux