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freebsd-skq/usr.sbin/daemon/daemon.8

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Add a new utility that runs an executable detached from the controlling terminal. Discussed on: -hackers Obtained from: BSD/OS
2001-08-30 04:48:02 +00:00
.\" 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.
.\"
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" $FreeBSD$
.\"
.Dd August 30, 2001
.Dt DAEMON 8
mdoc(7) police: minor formatting tweaks.
2001-08-31 12:52:50 +00:00
.Os
Add a new utility that runs an executable detached from the controlling terminal. Discussed on: -hackers Obtained from: BSD/OS
2001-08-30 04:48:02 +00:00
.Sh NAME
.Nm daemon
.Nd run detached from the controlling terminal
.Sh SYNOPSIS
mdoc(7) police: minor formatting tweaks.
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.Nm
Add a new utility that runs an executable detached from the controlling terminal. Discussed on: -hackers Obtained from: BSD/OS
2001-08-30 04:48:02 +00:00
.Op Fl cf
Give daemon(8) the ability to create a pid-file. Since the target program does not know anything about the pid-file and we don't keep a babysitting process for the task, the pid-file will linger. Submitted by: mi PR: 56398
2004-06-02 06:48:13 +00:00
.Op Fl p Ar pidfile
mdoc(7) police: minor formatting tweaks.
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.Ar command arguments ...
Add a new utility that runs an executable detached from the controlling terminal. Discussed on: -hackers Obtained from: BSD/OS
2001-08-30 04:48:02 +00:00
.Sh DESCRIPTION
The
.Nm
mdoc(7) police: minor formatting tweaks.
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utility detaches itself from the controlling terminal and
Add a new utility that runs an executable detached from the controlling terminal. Discussed on: -hackers Obtained from: BSD/OS
2001-08-30 04:48:02 +00:00
executes the program specified by its arguments.
.Pp
The options are as follows:
mdoc(7) police: minor formatting tweaks.
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.Bl -tag -width indent
Add a new utility that runs an executable detached from the controlling terminal. Discussed on: -hackers Obtained from: BSD/OS
2001-08-30 04:48:02 +00:00
.It Fl c
mdoc(7) police: minor formatting tweaks.
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Change the current working directory to the root
.Pq Dq Pa / .
Add a new utility that runs an executable detached from the controlling terminal. Discussed on: -hackers Obtained from: BSD/OS
2001-08-30 04:48:02 +00:00
.It Fl f
Redirect standard input, standard output and standard error to
.Pa /dev/null .
Give daemon(8) the ability to create a pid-file. Since the target program does not know anything about the pid-file and we don't keep a babysitting process for the task, the pid-file will linger. Submitted by: mi PR: 56398
2004-06-02 06:48:13 +00:00
.It Fl p Ar file
mdoc(7) fixes.
2004-07-07 19:57:16 +00:00
Write the ID of the created process into the
Give daemon(8) the ability to create a pid-file. Since the target program does not know anything about the pid-file and we don't keep a babysitting process for the task, the pid-file will linger. Submitted by: mi PR: 56398
2004-06-02 06:48:13 +00:00
.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).
Add a new utility that runs an executable detached from the controlling terminal. Discussed on: -hackers Obtained from: BSD/OS
2001-08-30 04:48:02 +00:00
.El
mdoc(7) police: minor formatting tweaks.
2001-08-31 12:52:50 +00:00
.Sh DIAGNOSTICS
Add a new utility that runs an executable detached from the controlling terminal. Discussed on: -hackers Obtained from: BSD/OS
2001-08-30 04:48:02 +00:00
The
.Nm
utility exits 1 if an error is returned by the
.Xr daemon 3
mdoc(7) fixes.
2004-07-07 19:57:16 +00:00
library routine, 2 if the
.Ar pidfile
is requested, but cannot be opened,
Give daemon(8) the ability to create a pid-file. Since the target program does not know anything about the pid-file and we don't keep a babysitting process for the task, the pid-file will linger. Submitted by: mi PR: 56398
2004-06-02 06:48:13 +00:00
otherwise 0.
Add a new utility that runs an executable detached from the controlling terminal. Discussed on: -hackers Obtained from: BSD/OS
2001-08-30 04:48:02 +00:00
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
MFS: 1.2.2.2
2003-02-05 19:16:18 +00:00
.Fx 4.7 .
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