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NICE(1)								       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 dif‐
       ferent 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 schedul‐
       ing 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.

       If nice executes commands with arguments, it  uses  the	default	 shell
       /usr/bin/sh (see sh(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	 deci‐
				    mal	 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  pri‐
				    ority  higher than normal by using a nega‐
				    tive 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 com‐
		   mand.

ENVIRONMENT VARIABLES
       See  environ(5) for descriptions of the following environment variables
       that affect the execution of nice: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES,
       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 values:

       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 │
       ├───────────────┼─────────────────┤
       │CSI	       │ Enabled	 │
       └───────────────┴─────────────────┘

   /usr/xpg4/bin/nice
       ┌────────────────────┬─────────────────┐
       │  ATTRIBUTE TYPE    │ ATTRIBUTE VALUE │
       ├────────────────────┼─────────────────┤
       │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)

				 Jan 23, 2004			       NICE(1)
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