1.\" Copyright (c) 1980, 1990, 1993
2.\" The Regents of the University of California. All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.
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25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE.
31.\"
32.\" @(#)nice.1 8.1 (Berkeley) 6/6/93
33.\" $FreeBSD: head/usr.bin/nice/nice.1 51090 1999-09-08 15:40:46Z sheldonh $
34.\"
35.Dd June 6, 1993
36.Dt NICE 1
37.Os BSD 4
38.Sh NAME
39.Nm nice
40.Nd execute a command at a low scheduling priority
41.Sh SYNOPSIS
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68current process priority can only requested by the
69super-user.
70Negative numbers are expressed as
71.Fl - Ns Ar number .
72.Pp
73The returned exit status is the exit value from the
74command executed by
75.Nm nice .
76.Pp
77Some shells may provide a builtin
78.Nm
79command which is similar or identical to this utility. Consult
80the
81.Xr builtin 1
82manual page.
83.Sh EXAMPLES
84.Pp
85$ nice -5 date
86.Pp
87Execute command
88.Sq date
89at priority 5 assuming the priority of the
90shell is 0.
91.Pp
92# nice -16 nice --35 date
93.Pp
94Execute command
95.Sq date
96at priority -19 assuming the priority of the
97shell is 0 and you are the super-user.
98.Sh SEE ALSO
99.Xr builtin 1 ,
100.Xr csh 1 ,
101.Xr idprio 1 ,
102.Xr rtprio 1 ,
103.Xr getpriority 2 ,
104.Xr setpriority 2 ,
105.Xr renice 8
106.Sh HISTORY
107A
108.Nm
109command appeared in
110.At v6 .
2.\" The Regents of the University of California. All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.
--- 16 unchanged lines hidden (view full) ---
25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE.
31.\"
32.\" @(#)nice.1 8.1 (Berkeley) 6/6/93
33.\" $FreeBSD: head/usr.bin/nice/nice.1 51090 1999-09-08 15:40:46Z sheldonh $
34.\"
35.Dd June 6, 1993
36.Dt NICE 1
37.Os BSD 4
38.Sh NAME
39.Nm nice
40.Nd execute a command at a low scheduling priority
41.Sh SYNOPSIS
--- 26 unchanged lines hidden (view full) ---
68current process priority can only requested by the
69super-user.
70Negative numbers are expressed as
71.Fl - Ns Ar number .
72.Pp
73The returned exit status is the exit value from the
74command executed by
75.Nm nice .
76.Pp
77Some shells may provide a builtin
78.Nm
79command which is similar or identical to this utility. Consult
80the
81.Xr builtin 1
82manual page.
83.Sh EXAMPLES
84.Pp
85$ nice -5 date
86.Pp
87Execute command
88.Sq date
89at priority 5 assuming the priority of the
90shell is 0.
91.Pp
92# nice -16 nice --35 date
93.Pp
94Execute command
95.Sq date
96at priority -19 assuming the priority of the
97shell is 0 and you are the super-user.
98.Sh SEE ALSO
99.Xr builtin 1 ,
100.Xr csh 1 ,
101.Xr idprio 1 ,
102.Xr rtprio 1 ,
103.Xr getpriority 2 ,
104.Xr setpriority 2 ,
105.Xr renice 8
106.Sh HISTORY
107A
108.Nm
109command appeared in
110.At v6 .