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[root@linuxcool ~]# ps aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 2 0.0 0.0 0 0 ? S 20:05 0:00 [kthreadd]
root 3 0.0 0.0 0 0 ? I< 20:05 0:00 [rcu_gp]
root 4 0.0 0.0 0 0 ? I< 20:05 0:00 [rcu_par_gp]
………………Ê¡ÂÔ²¿·ÖÊä³öÐÅÏ¢………………
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[root@linuxcool ~]# ps aux > backup.txt
½áºÏ¹ÜµÀ²Ù×÷·û£¬½«µ±Ç°ÏµÍ³ÔËÐÐ״̬ÖÐÖ¸¶¨½ø³ÌÐÅÏ¢¹ýÂ˳öÀ´£º
[root@linuxcool ~]# ps -ef | grep ssh
………………Ê¡ÂÔÊä³öÐÅÏ¢………………
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[root@linuxcool ~]# ps -u root
PID TTY TIME CMD
1 ? 00:00:01 systemd
2 ? 00:00:00 kthreadd
3 ? 00:00:00 rcu_gp
4 ? 00:00:00 rcu_par_gp
………………Ê¡ÂÔ²¿·ÖÊä³öÐÅÏ¢………………
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[root@linuxcool ~]# ps aux | sort -rnk 3
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 2341 0.4 8.1 4504040 164896 tty2 Sl+ 20:05 0:24 /usr/bin/gnome-shell
root 4534 0.3 0.4 220064 8520 ? Ssl 21:37 0:00 /usr/libexec/nm-dispatcher
gdm 1541 0.1 7.3 4211428 147400 tty1 Sl+ 20:05 0:06 /usr/bin/gnome-shell
………………Ê¡ÂÔ²¿·ÖÊä³öÐÅÏ¢………………
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[root@linuxcool ~]# ps aux | sort -rnk 4
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 2341 0.4 8.1 4503976 164828 tty2 Sl+ 20:05 0:27 /usr/bin/gnome-shell
gdm 1541 0.1 7.3 4211428 147556 tty1 Sl+ 20:05 0:08 /usr/bin/gnome-shell
root 2661 0.0 3.1 1271636 63004 tty2 Sl+ 20:05 0:01 /usr/bin/gnome-software --gapplication-service
………………Ê¡ÂÔ²¿·ÖÊä³öÐÅÏ¢………………
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