lcfglock - lock/unlock component semaphore
/usr/sbin/lcfglock [options] component
This command is used by LCFG components to prevent multiple simultaneous executions of component methods.
When used in conjunction with -u this option forces the lock on the named component to be broken, even if it was owned by some other process.
Use directory dir for lock files.
Print debugging messages to stderr.
Lock operations return immediately with exit status 2 if the semaphore is busy rather than waiting.
Use pid as the process owning the semaphore. The default is is the process calling lcfglock.
Quiet mode. exit silently when attempting to release non-existent locks, or to take already existing locks.
Lock operations return immediately with exit status 2 if the semaphore is busy after waiting secs seconds.
Unlock (rather than lock) the semaphore.
Print messages when waiting for lock.
ScientificLinux6, EnterpriseLinux7, MacOSX
Paul Anderson <dcspaul@inf.ed.ac.uk>