-.TH NICE 1 ""
-.UC 4
-.SH NAME
-nice, nohup \- run a command at low priority (\fIsh\fR only)
-.SH SYNOPSIS
-.B nice
-[
-.BI \- number
-]
-command [ arguments ]
-.PP
-.B nohup
-command [ arguments ]
-.SH DESCRIPTION
-.I Nice
-executes
-.I command
-with low scheduling priority.
-If the
-.I number
-argument is present, the priority is incremented (higher
-numbers mean lower priorities) by that amount up to a limit of 20.
-The default
-.I number
-is 10.
-.PP
-The super-user may run commands with
-priority higher than normal
-by using a negative priority,
-e.g. `\-\-10'.
-.PP
-.I Nohup
-executes
-.I command
-immune to hangup and terminate signals from the controlling terminal.
-The priority is incremented by 5.
-.I Nohup
-should be invoked from the shell with `&' in order to
-prevent it from responding to interrupts by or
-stealing the input from
-the next person who logs in on the same terminal.
-The syntax of nice is also different.
-.SH FILES
-nohup.out standard output and standard error file under
-.I nohup
-.SH "SEE ALSO"
-csh(1), setpriority(2), renice(8)
-.SH DIAGNOSTICS
-.I Nice
-returns the exit status of the subject command.
-.SH BUGS
-.I Nice
-and
-.I nohup
-are particular to
-.IR sh (1).
-If you use
-.IR csh (1),
-then commands executed with ``&'' are automatically immune to hangup
-signals while in the background.
-There is a builtin command
-.I nohup
-which provides immunity from terminate, but it does not
-redirect output to
-.I nohup.out.
-.PP
-.I Nice
-is built into
-.IR csh (1)
-with a slightly different syntax than described here. The form
-``nice +10'' nices to positive nice, and ``nice \-10'' can be used
-by the super-user to give a process more of the processor.
+.\" 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. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+.\"
+.\" @(#)nohup.1 6.8 (Berkeley) 7/27/91
+.\"
+.Dd July 27, 1991
+.Dt NOHUP 1
+.Os
+.Sh NAME
+.Nm nohup
+.Nd invoke a command immune to hangups
+.Sh SYNOPSIS
+.Nm nohup
+.Ar command
+.Op Ar arg ...
+.Sh DESCRIPTION
+The
+.Nm nohup
+utility invokes
+.Ar command
+with
+its arguments
+and at this time sets the signal
+.Dv SIGHUP
+to be ignored. The signal
+.Dv SIGQUIT
+may also be set
+to be ignored.
+If the standard output is a terminal, the standard output is
+appended to the file
+.Pa nohup.out
+in the current directory.
+If standard error is a terminal, it is directed to the same place
+as the standard output.
+.Pp
+.Nm Nohup
+exits 1 if an error occurs, otherwise the exit status is that of
+.Ar command .
+.Sh ENVIRONMENT
+The following variable is utilized by
+.Nm nohup .
+.Bl -tag -width flag
+.It Ev HOME
+If the output file
+.Pa nohup.out
+cannot be created in the current directory, the
+.Nm nohup
+utility uses the directory named by
+.Ev HOME
+to create the file.
+.El
+.Sh SEE ALSO
+.Xr signal 3
+.Sh STANDARDS
+The
+.Nm nohup
+command is expected to be
+.St -p1003.2
+compatible.
projects / unix-history / blobdiff