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SunOS man pages : nice (2)

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 ver- sion 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, which is equivalent to /usr/bin/ksh (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 must be in the range 1-19; if not specified, an increment of 10 is assumed. An increment greater than 19 is equivalent to 19. 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. SunOS 5.8 Last change: 18 Mar 1997 1 User Commands nice(1)

OPERANDS

The following operands are supported: command The name of a command that is to be invoked. If com- mand 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: 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 attri- butes: /usr/bin/nice ____________________________________________________________ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | | Availability | SUNWcsu | | CSI | enabled | |_____________________________|_____________________________| /usr/xpg4/bin/nice ____________________________________________________________ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | | Availability | SUNWxcu4 | | CSI | enabled | |_____________________________|_____________________________|

SEE ALSO

csh(1), ksh(1), nohup(1), priocntl(1), sh(1), shell_builtins(1), nice(2), attributes(5), environ(5), XPG4(5) SunOS 5.8 Last change: 18 Mar 1997 2