Manual page for nice(1)
nice - run a command at a different priority
SYNOPSIS
command
/usr/bin/nice
[
-increment
|
-n increment
]
command
[
arguments
]
csh Builtin
nice
[
-/+increment
] [
command
]
AVAILABILITY
SUNWcsu
DESCRIPTION
/usr/bin/nice
executes
command
with a lower
CPU
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 the
/usr/bin/nice
command.
nice
is also a
csh
built-in command which behaves differently than the command version. See
csh.1
for description.
OPTIONS
The following options are supported:
- -increment
-
- -n increment
-
If the
increment
argument (in the range 1-19) is given,
it is used;
if not, an increment of 10 is assumed.
The super-user may run commands with
priority higher than normal
by using a negative increment,
for example,
--10.
A negative increment assigned by an unprivileged user is
ignored.
If the
csh
is used, the syntax on this man page
does not apply, unless /usr/bin/nice
is invoked at the beginning of the command
line. Instead, refer to
csh.1
for a different
nice
syntax.
OPERANDS
The following operands are supported:
- command
-
The name of a
command that is to be invoked.
If
command
operand 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
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 in the
nice
utility.
- 126
-
command
was found but could not be invoked.
- 127
-
command
could not be found.
SEE ALSO
csh.1
nohup.1
priocntl.1
shell_builtins.1
nice.2
environ.5
NOTES
An
increment
larger than 19 is equivalent to
19.
Created by unroff & hp-tools.
© by Hans-Peter Bischof. All Rights Reserved (1997).
Last modified 21/April/97
