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   lslocks    ( 8 )

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Имя (Name)

lslocks - list local system locks

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Синопсис (Synopsis)

lslocks [options]

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Описание (Description)

lslocks lists information about all the currently held file locks in a Linux system.

Note that lslocks also lists OFD (Open File Description) locks, these locks are not associated with any process (PID is -1). OFD locks are associated with the open file description on which they are acquired. This lock type is available since Linux 3.15, see fcntl(2) for more details.

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Параметры (Options)

-b, --bytes
           Print the SIZE column in bytes rather than in a
           human-readable format.

       -i, --noinaccessible
           Ignore lock files which are inaccessible for the current
           user.

       -J, --json
           Use JSON output format.

       -n, --noheadings
           Do not print a header line.

       -o, --output list
           Specify 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).

       --output-all
           Output all available columns.

       -p, --pid pid
           Display only the locks held by the process with this pid.

       -r, --raw
           Use the raw output format.

       -u, --notruncate
           Do not truncate text in columns.

       -V, --version
           Display version information and exit.

       -h, --help
           Display help text and exit.

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Вывод (Output)

COMMAND The command name of the process holding the lock.

PID The process ID of the process which holds the lock or -1 for OFDLCK.

TYPE The type of lock; can be FLOCK (created with flock(2)), POSIX (created with fcntl(2) and lockf(3)) or OFDLCK (created with fcntl(2)).

SIZE Size of the locked file.

MODE The lock's access permissions (read, write). If the process is blocked and waiting for the lock, then the mode is postfixed with an '*' (asterisk).

M Whether the lock is mandatory; 0 means no (meaning the lock is only advisory), 1 means yes. (See fcntl(2).)

START Relative byte offset of the lock.

END Ending offset of the lock.

PATH Full 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 and "..." is appended to the path. The path might be truncated; use --notruncate to get the full path.

BLOCKER The PID of the process which blocks the lock.

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Примечание (Note)

The lslocks command is meant to replace the lslk(8) command, originally written by Victor A. Abell <abe@purdue.edu> and unmaintained since 2001.

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