NICE(1)                              BSD                               NICE(1)



NAME
     nice, nohup - run a command at low priority (sh only)

SYNOPSIS
     nice [ -number ] command [ arguments ]

     nohup command [ arguments ]

DESCRIPTION
     nice executes command with low scheduling priority.  If you specify
     number, nice increments the priority (higher numbers mean lower
     priorities) by that amount up to a limit of 20.  The default number is
     10.

     The super-user can run commands with priority higher than normal by using
     a negative priority, for example, "--10".

     nohup executes command, making it immune to hang-up and terminate signals
     from the controlling terminal.  The priority is incremented by five.  You
     should invoke nohup from the shell with a trailing ampersand (&) in order
     to prevent it from responding to interrupts by or stealing the input from
     the next person who logs in on the same terminal.

FILES
     nohup.out Standard output and standard error file under nohup

SEE ALSO
     csh(1), setpriority(2), renice(8)

DIAGNOSTICS
     nice returns the exit status of the subject command.

BUGS
     nice and nohup are particular to sh(1).  If you use csh(1), commands
     executed with "&" are automatically immune to hang-up signals while in
     the background.  A built-in command, nohup, provides immunity from
     terminate, but does not redirect output to nohup.out.

     nice is built into csh(1) with a slightly different syntax than described
     here.  The form "nice +10" runs a command at low priority, and the
     super-user can use "nice -10" to give a process more of the processor.

     Because Domain/OS priority scheduling uses a different scale (1 to 16
     instead of 0 to 20), there may be rounding problems, and processes may be
     "niced" to a slightly different value than expected.