NICE(1) BSD General Commands Manual NICE(1)NAME
nice -- execute a utility with an altered scheduling priority
SYNOPSIS
nice [-n increment] utility [argument ...]
DESCRIPTION
nice runs utility at an altered scheduling priority. If an increment is given, it is used; otherwise an increment of 10 is assumed. The
super-user can run utilities with priorities higher than normal by using a negative increment. The priority can be adjusted over a range of
-20 (the highest) to 20 (the lowest).
Available options:
-n increment
A positive or negative decimal integer used to modify the system scheduling priority of utility.
DIAGNOSTICS
The nice utility shall exit with one of the following values:
1-125 An error occurred in the nice utility.
126 The utility was found but could not be invoked.
127 The utility could not be found.
Otherwise, the exit status of nice shall be that of utility.
COMPATIBILITY
The historic -increment option has been deprecated but is still supported in this implementation.
SEE ALSO csh(1), getpriority(2), setpriority(2), renice(8)STANDARDS
The nice utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').
HISTORY
A nice utility appeared in Version 6 AT&T UNIX.
BUGS
nice is built into 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.
BSD June 6, 1993 BSD
Check Out this Related Man Page
nice(1) User Commands nice(1)NAME
nice - invoke a command with an altered scheduling priority
SYNOPSIS
/usr/bin/nice [-increment | -n increment] command [argument...]
/usr/xpg4/bin/nice [-increment | -n increment] command [argument...]
csh Builtin
nice [-increment | +increment] [command]
DESCRIPTION
The nice utility invokes command, requesting that it be run with a different system scheduling priority. The priocntl(1) command is a more
general interface to scheduler functions.
The invoking process (generally the user's shell) must be in a scheduling class that supports nice.
If the C shell (see csh(1)) is used, the full path of the command must be specified. Otherwise, the csh built-in version of nice will be
invoked. See csh Builtin below.
/usr/bin/nice
If nice executes commands with arguments, it uses the default shell /usr/bin/sh (see sh(1)).
/usr/xpg4/bin/nice
If nice executes commands with arguments, it uses /usr/xpg4/bin/sh (see ksh(1)).
csh Builtin
nice is also a csh built-in command with behavior different from the utility versions. See csh(1) for description.
OPTIONS
The following options are supported:
-increment | -n increment
increment is a positive or negative decimal integer that has the same effect on the execution of the utility as if the utility had
called the nice() function with the numeric value of the increment option-argument. See nice(2). nice() errors, other than EINVAL, are
ignored. If not specified, an increment of 10 is assumed.
The super-user may run commands with priority higher than normal by using a negative increment such as -10. A negative increment
assigned by an unprivileged user is ignored.
OPERANDS
The following operands are supported:
command The name of a command that is to be invoked. If command names any of the special built-in utilities (see
shell_builtins(1)), the results are undefined.
argument Any string to be supplied as an argument when invoking command.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of nice: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, PATH, and NLSPATH.
EXIT STATUS
If command is invoked, the exit status of nice will be the exit status of command. Otherwise, nice will exit with one of the following val-
ues:
1-125 An error occurred.
126 command was found but could not be invoked.
127 command could not be found.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
/usr/bin/nice
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
/usr/xpg4/bin/nice
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWxcu4 |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), ksh(1), nohup(1), priocntl(1), sh(1), shell_builtins(1), nice(2), attributes(5), environ(5), standards(5)SunOS 5.10 23 Jan 2004 nice(1)