lslocks — list local system locks
lslocks [options]
−J,
−−jsonUse JSON output format.
−n,
−−noheadingsDo not print a header line.
−o,
−−output listSpecify which output columns to print. Use
−−help to get a
list of all supported columns.
The default list of columns may be extended if
list is
specified in the format +list (e.g.
lslocks -o
+BLOCKER).
−p,
−−pid pidDisplay only the locks held by the process with this pid.
−r,
−−rawUse the raw output format.
−u,
−−notruncateDo not truncate text in columns.
−V,
−−versionDisplay version information and exit.
−h,
−−helpDisplay help text and exit.
COMMANDThe command name of the process holding the lock.
PIDThe process ID of the process which holds the lock.
TYPEThe type of lock; can be FLOCK (created with flock(2)) or POSIX (created with fcntl(2) and lockf(3)).
SIZESize of the locked file.
MODEThe lock's access permissions (read, write). If the process is blocked and waiting for the lock, then the mode is postfixed with an '*' (asterisk).
MWhether the lock is mandatory; 0 means no (meaning the lock is only advisory), 1 means yes. (See fcntl(2).)
STARTRelative byte offset of the lock.
ENDEnding offset of the lock.
PATHFull path of the lock. If none is found, or there
are no permissions to read the path, it will fall back
to the device's mountpoint. The path might be
truncated; use −−notruncate to get the
full path.
BLOCKERThe PID of the process which blocks the lock.