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- NICE User Commands NICE
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- NNAAMMEE
- nice, nohup - run a command at low priority (_s_h only)
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- SSYYNNOOPPSSIISS
- nniiccee [ --_n_u_m_b_e_r ] command [ arguments ]
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- nnoohhuupp command [ arguments ]
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- DDEESSCCRRIIPPTTIIOONN
- _N_i_c_e executes _c_o_m_m_a_n_d with low scheduling priority. If the
- _n_u_m_b_e_r argument is present, the priority is incremented
- (higher numbers mean lower priorities) by that amount up to
- a limit of 20. The default _n_u_m_b_e_r is 10.
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- The super-user may run commands with priority higher than
- normal by using a negative priority, e.g. `--10'.
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- _N_o_h_u_p executes _c_o_m_m_a_n_d immune to hangup and terminate sig-
- nals from the controlling terminal. The priority is incre-
- mented by 5. _N_o_h_u_p should be invoked from the shell with
- `&' 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.
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- SSPPRRIITTEE
- _N_i_c_e on Sprite maps Unix priorities in the range -20 to 20
- into one of the five Sprite priorities. The mapping is done
- as follows:
- -20 - -20 -> -20
- -19 - -10 -> -10
- -9 - 9 -> 0
- 10 - 19 -> 10
- 20 - 20 -> 20
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- FFIILLEESS
- nohup.out standard output and standard error file under
- _n_o_h_u_p
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- SSEEEE AALLSSOO
- csh(1), setpriority(2), renice(8)
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- DDIIAAGGNNOOSSTTIICCSS
- _N_i_c_e returns the exit status of the subject command.
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- BBUUGGSS
- _N_i_c_e and _n_o_h_u_p are particular to _s_h(1). If you use _c_s_h(1),
- then commands executed with ``&'' are automatically immune
- to hangup signals while in the background. There is a buil-
- tin command _n_o_h_u_p which provides immunity from terminate,
- but it does not redirect output to _n_o_h_u_p._o_u_t.
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- _N_i_c_e is built into _c_s_h(1) with a slightly different syntax
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- Sprite v1.0 May 8, 1986 1
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- NICE User Commands NICE
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- than described here. The form ``nice +10'' nices to posi-
- tive nice, and ``nice -10'' can be used by the super-user to
- give a process more of the processor.
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- Sprite v1.0 May 8, 1986 2
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