Linux基础命令---升值程序优先级nice

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--version

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-n | --adjustment=N

设置优先级

[root@localhost ~]# nice -n 19 wc                    //设置wc的优先级最低

^Z                                                        //按下组合键ctrl+z [2]+  Stopped                 nice -n 19 wc

[root@localhost ~]# 

[root@localhost ~]# ps -ao "%p%y%x%c%n"             //查看进程等级，wc的等级是19

  PID TTY          TIME COMMAND          NI

 8321 pts/0    00:00:00 wc               19

 8370 pts/0    00:00:00 ps                0