Annotation of src/usr.bin/nice/nice.1, Revision 1.2
1.2 ! deraadt 1: .\" $OpenBSD: nice.1,v 1.6 1995/08/31 23:30:57 jtc 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
49: .Nm Nice
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
68: .Ar utility.
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 ,
99: .Xr renice 8
100: .Sh STANDARDS
101: The
102: .Nm nice
103: utility conforms to
104: .St -p1003.2-92 .
105: .Sh HISTORY
106: A
107: .Nm nice
108: utility appeared in
109: .At v6 .
110: .Sh BUGS
111: .Nm Nice
112: is built into
113: .Xr csh 1
114: with a slightly different syntax than described here. The form
115: .Ql nice +10
116: nices to positive nice, and
117: .Ql nice \-10
118: can be used
119: by the super-user to give a process more of the processor.