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.