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\"      @(#)nice.1      8.1 (Berkeley) 6/6/93
\"
Dd June 6, 1993
Dt NICE 1
Os
Sh NAME
Nm nice
Nd execute a utility with an altered scheduling priority
Sh SYNOPSIS
Nm
Op Fl n Ar increment
Ar utility
Op Ar argument ...
Sh DESCRIPTION
Nm
runs
Ar utility
at an altered scheduling priority.
If an
Ar 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
Ar increment .
The priority can be adjusted over a
range of -20 (the highest) to 20 (the lowest).
A priority of 19 or 20
will prevent a process from taking any cycles from others at nice 0 or
better.
Pp
Available options:
Bl -tag -width indent
It Fl n Ar increment
A positive or negative decimal integer used to modify the system scheduling
priority of
Ar utility .
El
Sh EXIT STATUS
The
Nm
utility exits with one of the following values:
Bl -tag -width indent
It 1-125
An error occurred in the
Nm
utility.
It 126
The
Ar utility
was found but could not be invoked.
It 127
The
Ar utility
could not be found.
El
Pp
Otherwise, the exit status of
Nm
will be that of
Ar utility .
Sh COMPATIBILITY
The historic
Fl Ns Ar increment
option has been deprecated but is still supported in this implementation.
Sh SEE ALSO
Xr csh 1 ,
Xr getpriority 2 ,
Xr setpriority 2 ,
Xr renice 8
Sh STANDARDS
The
Nm
utility conforms to
St -p1003.2-92 .
Sh HISTORY
A
Nm
utility appeared in
At v6 .
Sh BUGS
Nm
is built into
Xr csh 1
with a slightly different syntax than described here.
The form
Ql nice +10
nices to positive nice, and
Ql nice \-10
can be used
by the super-user to give a process more of the processor.

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