85 lines
2.7 KiB
Groff
85 lines
2.7 KiB
Groff
.\" Copyright (c) 1999 Berkeley Software Design, Inc. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. Berkeley Software Design Inc's name may not be used to endorse or
|
|
.\" promote products derived from this software without specific prior
|
|
.\" written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd August 30, 2001
|
|
.Dt DAEMON 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm daemon
|
|
.Nd run detached from the controlling terminal
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl cf
|
|
.Op Fl p Ar pidfile
|
|
.Ar command arguments ...
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility detaches itself from the controlling terminal and
|
|
executes the program specified by its arguments.
|
|
.Pp
|
|
The options are as follows:
|
|
.Bl -tag -width indent
|
|
.It Fl c
|
|
Change the current working directory to the root
|
|
.Pq Dq Pa / .
|
|
.It Fl f
|
|
Redirect standard input, standard output and standard error to
|
|
.Pa /dev/null .
|
|
.It Fl p Ar file
|
|
Write the ID of the created process into the
|
|
.Ar file .
|
|
Note, that the file will be created shortly before the process is
|
|
actually executed, and will remain after the process exits (although
|
|
it will be removed if the execution fails).
|
|
.El
|
|
.Sh EXIT STATUS
|
|
The
|
|
.Nm
|
|
utility exits 1 if an error is returned by the
|
|
.Xr daemon 3
|
|
library routine, 2 if the
|
|
.Ar pidfile
|
|
is requested, but cannot be opened,
|
|
otherwise 0.
|
|
.Sh DIAGNOSTICS
|
|
If the command cannot be executed, an error message is displayed on
|
|
standard error unless the
|
|
.Fl f
|
|
flag is specified.
|
|
.Sh SEE ALSO
|
|
.Xr daemon 3 ,
|
|
.Xr exec 3 ,
|
|
.Xr termios 4 ,
|
|
.Xr tty 4
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
utility first appeared in
|
|
.Fx 4.7 .
|