Annotation of src/usr.bin/nice/nice.1, Revision 1.4
1.4 ! aaron 1: .\" $OpenBSD: nice.1,v 1.3 1997/08/25 17:51:02 deraadt Exp $
1.1 deraadt 2: .\" $NetBSD: nice.1,v 1.6 1995/08/31 23:30:57 jtc Exp $
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35: .\" @(#)nice.1 8.1 (Berkeley) 6/6/93
36: .\"
37: .Dd June 6, 1993
38: .Dt NICE 1
39: .Os
40: .Sh NAME
41: .Nm nice
42: .Nd execute a utility with an altered scheduling priority
43: .Sh SYNOPSIS
44: .Nm nice
45: .Op Fl n Ar increment
46: .Ar utility
47: .Op Ar argument ...
48: .Sh DESCRIPTION
1.4 ! aaron 49: .Nm nice
1.1 deraadt 50: runs
51: .Ar utility
52: at an altered scheduling priority.
53: If an
54: .Ar increment
55: is given, it is used; otherwise
56: an increment of 10 is assumed.
57: The super-user can run utilities with priorities higher than normal by using
58: a negative
59: .Ar increment .
60: The priority can be adjusted over a
61: range of -20 (the highest) to 20 (the lowest).
62: .Pp
63: Available options:
64: .Bl -tag -width indent
65: .It Fl n Ar increment
66: A positive or negative decimal integer used to modify the system scheduling
67: priority of
1.4 ! aaron 68: .Ar utility .
1.1 deraadt 69: .El
70: .Sh DIAGNOSTICS
71: The
72: .Nm nice
73: utility shall exit with one of the following values:
74: .Bl -tag -width indent
75: .It 1-125
76: An error occurred in the
77: .Nm nice
78: utility.
79: .It 126
80: The
81: .Ar utility
82: was found but could not be invoked.
83: .It 127
84: The
85: .Ar utility
86: could not be found.
87: .El
88: .Pp
89: Otherwise, the exit status of
90: .Nm nice
91: shall be that of
92: .Ar utility .
93: .Sh COMPATIBILITY
94: The historic
95: .Fl Ns Ar increment
96: option has been deprecated but is still supported in this implementation.
97: .Sh SEE ALSO
98: .Xr csh 1 ,
1.3 deraadt 99: .Xr getpriority 2 ,
100: .Xr setpriority 2 ,
1.1 deraadt 101: .Xr renice 8
102: .Sh STANDARDS
103: The
104: .Nm nice
105: utility conforms to
106: .St -p1003.2-92 .
107: .Sh HISTORY
108: A
109: .Nm nice
110: utility appeared in
111: .At v6 .
112: .Sh BUGS
1.4 ! aaron 113: .Nm nice
1.1 deraadt 114: is built into
115: .Xr csh 1
116: with a slightly different syntax than described here. The form
117: .Ql nice +10
118: nices to positive nice, and
119: .Ql nice \-10
120: can be used
121: by the super-user to give a process more of the processor.