won't actually lock a file, but inform the invoking
process if it's at all possible to lock \fIfile\fP.
.IP "-f"
Force the lock. If another process holds a lock on
\fIfile\fP longer than a certain amount of time,
won't actually lock a file, but inform the invoking
process if it's at all possible to lock \fIfile\fP.
.IP "-f"
Force the lock. If another process holds a lock on
\fIfile\fP longer than a certain amount of time,