1nice(1) User Commands nice(1)
2
6 nice - invoke a command with an altered scheduling priority
7
9 /usr/bin/nice [-increment | -n increment] command
10 [argument]...
11 /usr/xpg4/bin/nice [-increment | -n increment] command
14 [argument]...
15 csh Builtin
18 nice [-increment | +increment] [command]
19
22 The nice utility invokes command, requesting that it be run with a dif‐
23 ferent system scheduling priority. The priocntl(1) command is a more
24 general interface to scheduler functions.
25 The invoking process (generally the user's shell) must be in a schedul‐
28 ing class that supports nice.
29 If the C shell (see csh(1)) is used, the full path of the command must
32 be specified. Otherwise, the csh built-in version of nice will be
33 invoked. See csh Builtin below.
34 /usr/bin/nice
36 If nice executes commands with arguments, it uses the default shell
37 /usr/bin/sh (see sh(1)).
38 /usr/xpg4/bin/nice
40 If nice executes commands with arguments, it uses /usr/xpg4/bin/sh (see
41 ksh(1)).
42 csh Builtin
44 nice is also a csh built-in command with behavior different from the
45 utility versions. See csh(1) for description.
46
48 The following options are supported:
49 -increment | -n increment increment is a positive or negative deci‐
51 mal integer that has the same effect on
52 the execution of the utility as if the
53 utility had called the nice() function
54 with the numeric value of the increment
55 option-argument. See nice(2). nice()
56 errors, other than EINVAL, are ignored. If
57 not specified, an increment of 10 is
58 assumed.
59 The super-user may run commands with pri‐
61 ority higher than normal by using a nega‐
62 tive increment such as -10. A negative
63 increment assigned by an unprivileged user
64 is ignored.
65
68 The following operands are supported:
69 command The name of a command that is to be invoked. If command
71 names any of the special built-in utilities (see
72 shell_builtins(1)), the results are undefined.
73 argument Any string to be supplied as an argument when invoking com‐
76 mand.
77
80 See environ(5) for descriptions of the following environment variables
81 that affect the execution of nice: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES,
82 PATH, and NLSPATH.
83
85 If command is invoked, the exit status of nice will be the exit status
86 of command. Otherwise, nice will exit with one of the following values:
87 1-125 An error occurred.
89 126 command was found but could not be invoked.
92 127 command could not be found.
95
98 See attributes(5) for descriptions of the following attributes:
99 /usr/bin/nice
101 ┌─────────────────────────────┬─────────────────────────────┐
102 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
103 ├─────────────────────────────┼─────────────────────────────┤
104 │Availability │SUNWcsu │
105 ├─────────────────────────────┼─────────────────────────────┤
106 │CSI │Enabled │
107 └─────────────────────────────┴─────────────────────────────┘
108 /usr/xpg4/bin/nice
110 ┌─────────────────────────────┬─────────────────────────────┐
111 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
112 ├─────────────────────────────┼─────────────────────────────┤
113 │Availability │SUNWxcu4 │
114 ├─────────────────────────────┼─────────────────────────────┤
115 │CSI │Enabled │
116 ├─────────────────────────────┼─────────────────────────────┤
117 │Interface Stability │Standard │
118 └─────────────────────────────┴─────────────────────────────┘
119
121 csh(1), ksh(1), nohup(1), priocntl(1), sh(1), shell_builtins(1),
122 nice(2), attributes(5), environ(5), standards(5)
123SunOS 5.11 23 Jan 2004 nice(1)