PMLOCK(1)
NAME
pmlock - simple file-based mutex
SYNOPSIS
$PCP_BINADM_DIR/pmlock [ -v ] file
DESCRIPTION
pmlock attempts to acquire an exclusive lock by creating file with a
mode of 0.
The exit status is 0 for success, 1 for failure.
To release the lock, unlink file.
- In the event of a failure, the -v option produces an explanatory message on stdout.