BSD 4_3_Reno release

[unix-history] / usr / src / usr.bin / nice / nice.1

diff --git a/usr/src/usr.bin/nice/nice.1 b/usr/src/usr.bin/nice/nice.1
index f8ee6b4..ae04d57 100644 (file)
--- a/usr/src/usr.bin/nice/nice.1
+++ b/usr/src/usr.bin/nice/nice.1
@@ -1,77 +1,79 @@
-.\" Copyright (c) 1980 Regents of the University of California.
-.\" All rights reserved.  The Berkeley software License Agreement
-.\" specifies the terms and conditions for redistribution.
+.\" Copyright (c) 1980, 1990 The Regents of the University of California.
+.\" All rights reserved.

 .\"
 .\"

-.\"    @(#)nice.1      6.2 (Berkeley) %G%
+.\" Redistribution and use in source and binary forms are permitted provided
+.\" that: (1) source distributions retain this entire copyright notice and
+.\" comment, and (2) distributions including binaries display the following
+.\" acknowledgement:  ``This product includes software developed by the
+.\" University of California, Berkeley and its contributors'' in the
+.\" documentation or other materials provided with the distribution and in
+.\" all advertising materials mentioning features or use of this software.
+.\" 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

 .\"
 .\"

-.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.
-.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).
+.\"     @(#)nice.1     6.5 (Berkeley) 7/24/90
+.\"
+.Dd July 24, 1990
+.Dt NICE 1
+.Os BSD 4
+.Sh NAME
+.Nm nice
+.Nd execute a Bourne shell command at a low scheduling priority
+.Sh SYNOPSIS
+.Nm nice
+.Oo
+.Op Fl Ar number
+.Oo
+.Ar command
+.Op Ar arguments
+.Sh DESCRIPTION
+.Nm Nice
+runs
+.Ar command
+at a low priority.
+(Think of low and slow).
+If
+.Ar \-number
+is specified, and if it is greater than or equal
+to 10 (the default),
+.Nm nice
+will execute
+.Ar command
+at that priority.
+The upper bound, or lowest priority that
+.Nm nice
+will run a command is 20.
+The lower bounds or
+higher priorities (integers less than 10)
+can only be requested by the super-user.
+Negative numbers are expressed as
+.Ar \-\-number.
+.Pp
+The returned exit status is the exit value from the
+command executed by
+.Nm nice .
+.Sh SEE ALSO
+.Xr csh 1 ,
+.Xr renice 8
+.Sh HISTORY
+.Nm Nice
+appeared in Version 6 AT&T UNIX.
+.Sh BUGS
+.Nm Nice
+is particular to
+.Xr sh  1  .

 If you use
 If you use

-.IR csh (1),
+.Xr csh  1  ,

 then commands executed with ``&'' are automatically immune to hangup
 signals while in the background.
 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
+.Pp
+.Nm Nice

 is built into
 is built into

-.IR csh (1)
+.Xr 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.
 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.