1.\" 2.\" Copyright (c) 2005 Jeroen Ruigrok van der Werven <asmodai@dragonflybsd.org> 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.Dd July 24, 2005 27.Dt SHLOCK 1 28.Os 29.Sh NAME 30.Nm shlock 31.Nd create lock file from shell script 32.Sh SYNOPSIS 33.Nm 34.Op Fl d 35.Op Fl f Ar name 36.Op Fl p Ar pid 37.Op Fl u 38.Sh DESCRIPTION 39The 40.Nm 41utility tries to create a lock file named 42.Ar name 43and writes the process id 44.Ar pid 45into this file. 46.Pp 47Options: 48.Bl -tag -width Fl 49.It Fl d 50Enable debugging. 51.It Fl f Ar name 52The filename of the lock file. 53.It Fl p Ar pid 54The process id that will be written to file. 55.It Fl u 56Use UUCP style lock file format. 57.El 58.Sh EXIT STATUS 59.Ex -std 60.Sh EXAMPLES 61A typical use could be (from within a script): 62.Pp 63.Dl "shlock -f script.lock -p $$" 64.Sh HISTORY 65The 66.Nm 67command appeared in 68.Dx 1.3 . 69