Linux中想杀死fcitx进程，然后再重启它。
root@:/home/zhangbin# ps -e | grep 'fcitx'
3405 ? 00:00:00 fcitx <defunct>
3415 ? 00:00:02 fcitx
不显示标题
root@:/home/zhangbin# ps -h
Warning: bad ps syntax, perhaps a bogus '-'? See
929 tty4 Ss+ 0:00 /sbin/getty -8 38400 tty4
936 tty5 Ss+ 0:00 /sbin/getty -8 38400 tty5
945 tty2 Ss+ 0:00 /sbin/getty -8 38400 tty2
946 tty3 Ss+ 0:00 /sbin/getty -8 38400 tty3
949 tty6 Ss+ 0:00 /sbin/getty -8 38400 tty6
1096 tty1 Ss+ 0:00 /sbin/getty -8 38400 tty1
3303 tty8 Ss+ 0:28 /usr/bin/X :0 -br -verbose -auth /var/run/gdm/auth-fo
3590 pts/0 S 0:00 su
3598 pts/0 S 0:00 bash
3621 pts/0 S 0:00 dbus-launch --autolaunch 3153116c74ee72bf74da76a44d30
3787 pts/0 R+ 0:00 ps -h
显示所有进程
root@:/home/zhangbin# ps -e
PID TTY TIME CMD
1 ? 00:00:00 init
2 ? 00:00:00 kthreadd
3 ? 00:00:00 migration/0
4 ? 00:00:00 ksoftirqd/0
5 ? 00:00:00 watchdog/0
6 ? 00:00:00 events/0
7 ? 00:00:00 cpuset
8 ? 00:00:00 khelper
9 ? 00:00:00 netns
10 ? 00:00:00 async/mgr
11 ? 00:00:00 pm
12 ? 00:00:00 sync_supers
13 ? 00:00:00 bdi-default
14 ? 00:00:00 kintegrityd/0
15 ? 00:00:00 kblockd/0
16 ? 00:00:00 kacpid
17 ? 00:00:00 kacpi_notify
18 ? 00:00:00 kacpi_hotplug
19 ? 00:00:00 ata/0
20 ? 00:00:00 ata_aux
21 ? 00:00:00 ksuspend_usbd
22 ? 00:00:00 khubd
23 ? 00:00:00 kseriod
24 ? 00:00:00 kmmcd
27 ? 00:00:00 khungtaskd
28 ? 00:00:00 kswapd0
29 ? 00:00:00 ksmd
30 ? 00:00:00 aio/0
31 ? 00:00:00 ecryptfs-kthrea
32 ? 00:00:00 crypto/0
39 ? 00:00:00 scsi_eh_0
40 ? 00:00:00 scsi_eh_1
42 ? 00:00:00 kstriped
43 ? 00:00:00 kmpathd/0
44 ? 00:00:00 kmpath_handlerd
45 ? 00:00:00 ksnapd
46 ? 00:00:00 kondemand/0
47 ? 00:00:00 kconservative/0
252 ? 00:00:00 khpsbpkt
254 ? 00:00:00 knodemgrd_0
262 ? 00:00:00 jbd2/sda10-8
263 ? 00:00:00 ext4-dio-unwrit
296 ? 00:00:00 flush-8:0
323 ? 00:00:00 upstart-udev-br
327 ? 00:00:00 udevd
539 ? 00:00:00 kpsmoused
637 ? 00:00:00 i915
640 ? 00:00:00 jbd2/sda11-8
643 ? 00:00:00 ext4-dio-unwrit
652 ? 00:00:00 pccardd
654 ? 00:00:00 ipw2200/0
655 ? 00:00:00 udevd
681 ? 00:00:00 udevd
683 ? 00:00:00 ktpacpid
738 ? 00:00:00 jbd2/sda8-8
739 ? 00:00:00 ext4-dio-unwrit
778 ? 00:00:00 rsyslogd
787 ? 00:00:01 dbus-daemon
799 ? 00:00:00 gdm-binary
805 ? 00:00:00 avahi-daemon
807 ? 00:00:00 NetworkManager
809 ? 00:00:00 avahi-daemon
818 ? 00:00:00 modem-manager
822 ? 00:00:00 console-kit-dae
903 ? 00:00:00 wpa_supplicant
929 tty4 00:00:00 getty
936 tty5 00:00:00 getty
945 tty2 00:00:00 getty
946 tty3 00:00:00 getty
949 tty6 00:00:00 getty
951 ? 00:00:00 acpid
955 ? 00:00:00 anacron
960 ? 00:00:00 cron
961 ? 00:00:00 atd
996 ? 00:00:00 cupsd
1096 tty1 00:00:00 getty
1135 ? 00:00:00 upowerd
1139 ? 00:00:00 rtkit-daemon
1143 ? 00:00:00 polkitd
1291 ? 00:00:00 pulseaudio
1304 ? 00:00:00 gconf-helper
1316 ? 00:00:00 udisks-daemon
1317 ? 00:00:00 udisks-daemon
1434 ? 00:20:10 backend
1506 ? 00:00:00 system-service-
3252 ? 00:00:00 sh
3254 ? 00:00:00 run-parts
3258 ? 00:00:00 apt-xapian-inde
3259 ? 00:00:08 update-apt-xapi
3294 ? 00:00:00 gdm-simple-slav
3303 tty8 00:00:29 Xorg
3324 ? 00:00:00 dbus-launch
3339 ? 00:00:00 gdm-session-wor
3356 ? 00:00:00 gnome-keyring-d
3374 ? 00:00:00 gnome-session
3405 ? 00:00:00 fcitx <defunct>
3409 ? 00:00:00 ssh-agent
3412 ? 00:00:00 dbus-launch
3413 ? 00:00:00 dbus-daemon
3415 ? 00:00:03 fcitx
3417 ? 00:00:00 gconfd-2
3424 ? 00:00:00 gnome-settings-
3426 ? 00:00:00 gvfsd
3431 ? 00:00:00 gvfs-fuse-daemo
3435 ? 00:00:00 gnome-power-man
3437 ? 00:00:00 bluetooth-apple
3438 ? 00:00:02 gnome-panel
3439 ? 00:00:03 compiz
3440 ? 00:00:00 nautilus
3442 ? 00:00:00 nm-applet
3444 ? 00:00:00 polkit-gnome-au
3449 ? 00:00:00 syndaemon
3452 ? 00:00:00 gvfs-gdu-volume
3463 ? 00:00:00 gvfs-afc-volume
3466 ? 00:00:00 gvfs-gphoto2-vo
3468 ? 00:00:00 gvfsd-trash
3470 ? 00:00:00 bonobo-activati
3512 ? 00:00:00 trashapplet
3513 ? 00:00:02 wnck-applet
3526 ? 00:00:00 sh
3527 ? 00:00:00 gtk-window-deco
3535 ? 00:00:00 clock-applet
3536 ? 00:00:00 indicator-apple
3537 ? 00:00:00 indicator-apple
3538 ? 00:00:00 notification-ar
3544 ? 00:00:00 gvfsd-metadata
3546 ? 00:00:00 indicator-appli
3548 ? 00:00:00 indicator-messa
3550 ? 00:00:00 indicator-sound
3555 ? 00:00:00 indicator-sessi
3557 ? 00:00:00 gvfsd-burn
3559 ? 00:00:00 indicator-me-se
3562 ? 00:00:00 gnome-screensav
3568 ? 00:00:00 gdu-notificatio
3571 ? 00:00:00 gnome-terminal
3572 ? 00:00:00 gnome-pty-helpe
3573 pts/0 00:00:00 bash
3590 pts/0 00:00:00 su
3598 pts/0 00:00:00 bash
3610 ? 00:00:00 evolution-alarm
3611 ? 00:00:00 Python
3616 ? 00:00:00 cat
3621 pts/0 00:00:00 dbus-launch
3622 ? 00:00:00 dbus-daemon
3658 ? 00:00:00 update-notifier
3678 ? 00:00:08 chrome
3681 ? 00:00:00 chrome
3683 ? 00:00:00 chrome
3741 ? 00:00:11 chrome
3766 ? 00:00:02 chrome
3779 ? 00:00:00 aptd
3789 pts/0 00:00:00 ps
全格式，显示终端上的进程。
root@:/home/zhangbin# ps -f
UID PID PPID C STIME TTY TIME CMD
root 3590 3573 0 23:43 pts/0 00:00:00 su
root 3598 3590 0 23:43 pts/0 00:00:00 bash
root 3621 1 0 23:43 pts/0 00:00:00 dbus-launch --autolaunch 3153116
root 3790 3598 0 23:53 pts/0 00:00:00 ps -f
显示终端上的所有进程
root@:/home/zhangbin# ps -a
PID TTY TIME CMD
3590 pts/0 00:00:00 su
3598 pts/0 00:00:00 bash
3621 pts/0 00:00:00 dbus-launch
3791 pts/0 00:00:00 ps
显示所有者的信息
root@:/home/zhangbin# ps -u
Warning: bad ps syntax, perhaps a bogus '-'? See /faq.html
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 929 0.0 0.0 1792 464 tty4 Ss+ 23:20 0:00 /sbin/getty -8
root 936 0.0 0.0 1792 468 tty5 Ss+ 23:20 0:00 /sbin/getty -8
root 945 0.0 0.0 1792 468 tty2 Ss+ 23:20 0:00 /sbin/getty -8
root 946 0.0 0.0 1792 468 tty3 Ss+ 23:20 0:00 /sbin/getty -8
root 949 0.0 0.0 1792 468 tty6 Ss+ 23:20 0:00 /sbin/getty -8
root 1096 0.0 0.0 1792 468 tty1 Ss+ 23:20 0:00 /sbin/getty -8
root 3303 4.4 2.7 29932 20688 tty8 Ss+ 23:42 0:33 /usr/bin/X :0 -
root 3590 0.0 0.2 4692 1636 pts/0 S 23:43 0:00 su
root 3598 0.0 0.2 4784 1852 pts/0 S 23:43 0:00 bash
root 3621 0.0 0.0 3384 744 pts/0 S 23:43 0:00 dbus-launch --a
root 3792 0.0 0.1 2716 1048 pts/0 R+ 23:55 0:00 ps -u
