This tutorial explains Linux “pstree” command, options and its usage with examples.
pstree – display a tree of processes
Description :
pstree shows running processes as a tree. The tree is rooted at either pid or init if pid is omitted. If a user name is specified, all process trees rooted at processes owned by that user are shown.
pstree visually merges identical branches by putting them in square brackets and prefixing them with the repetition count.
Usage :
pstree [-a] [-c] [-h|-Hpid] [-l] [-n] [-p] [-u] [-G|-U] [pid|user] pstree -V
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Options :
-a
Show command line arguments. If the command line of a process is swapped out, that process is shown in parentheses. -a implicitly disables compaction.
-c
Disable compaction of identical subtrees. By default, subtrees are compacted whenever possible.
-G
Use VT100 line drawing characters.
-h
Highlight the current process and its ancestors. This is a no-op if the terminal doesn’t support highlighting or if neither the current process nor any of its ancestors are in the subtree being shown.
-H
Like -h, but highlight the specified process instead. Unlike with -h, pstree fails when using -H if highlighting is not available.
-l
Display long lines. By default, lines are truncated to the display width or 132 if output is sent to a non-tty or if the display width is unknown.
-n
Sort processes with the same ancestor by PID instead of by name. (Numeric sort.)
-p
Show PIDs. PIDs are shown as decimal numbers in parentheses after each process name. -p implicitly disables compaction.
-u
Show uid transitions. Whenever the uid of a process differs from the uid of its parent, the new uid is shown in parentheses after the process name.
-U
Use UTF-8 (Unicode) line drawing characters. Under Linux 1.1-54 and above, UTF-8 mode is entered on the console with echo -e ‘\033%8’ and left with echo -e ‘\033%@’
-V
Display version information.
-s
(Flask) Show Security ID (SID) for each process.
-x
(Flask) Show security context for each process.
Examples :
1. Display process tree
$ pstree
init---NetworkManager---dhclient
¦ +-dnsmasq
¦ +-3*[{NetworkManager}]
+-accounts-daemon---2*[{accounts-daemon}]
+-acpid
+-at-spi-bus-laun---2*[{at-spi-bus-laun}]
+-avahi-daemon---avahi-daemon
+-bamfdaemon---3*[{bamfdaemon}]
+-bluetoothd
+-colord---{colord}
+-console-kit-dae---64*[{console-kit-dae}]
+-cron
+-cups-browsed
+-cupsd
+-2*[dbus-daemon]
+-dbus-launch
+-dconf-service---2*[{dconf-service}]
+-evolution-sourc---2*[{evolution-sourc}]
+-gconfd-2
+-6*[getty]
+-gnome-keyring-d---7*[{gnome-keyring-d}]
+-gnome-terminal---bash---pstree
¦ +-gnome-pty-helpe
¦ +-3*[{gnome-terminal}]
+-gvfs-afc-volume---2*[{gvfs-afc-volume}]
+-gvfs-gphoto2-vo---{gvfs-gphoto2-vo}
+-gvfs-mtp-volume---{gvfs-mtp-volume}
+-gvfs-udisks2-vo---{gvfs-udisks2-vo}
+-gvfsd---{gvfsd}
+-gvfsd-burn---2*[{gvfsd-burn}]
+-gvfsd-fuse---4*[{gvfsd-fuse}]
+-gvfsd-http---sh---pxgsettings---2*[{pxgsettings}]
¦ +-4*[{gvfsd-http}]
+-gvfsd-metadata---{gvfsd-metadata}
+-gvfsd-trash---6*[{gvfsd-trash}]
+-hud-service---2*[{hud-service}]
+-indicator-appli---{indicator-appli}
+-indicator-bluet---2*[{indicator-bluet}]
+-indicator-datet---3*[{indicator-datet}]
+-indicator-messa---2*[{indicator-messa}]
+-indicator-print---2*[{indicator-print}]
+-indicator-sessi---2*[{indicator-sessi}]
+-indicator-sound---2*[{indicator-sound}]
+-indicator-sync----{indicator-sync-}
+-lightdm---Xorg
¦ +-lightdm---gnome-session---compiz---3*[{compiz}]
¦ ¦ ¦ +-deja-dup-monito---2*[{deja-dup-monit+
¦ ¦ ¦ +-gnome-fallback----2*[{gnome-fallback+
¦ ¦ ¦ +-gnome-screensav---2*[{gnome-screensa+
¦ ¦ ¦ +-gnome-settings----check_gl_textur
¦ ¦ ¦ ¦ +-2*[{gnome-settings+
¦ ¦ ¦ +-nautilus---3*[{nautilus}]
¦ ¦ ¦ +-nm-applet---3*[{nm-applet}]
¦ ¦ ¦ +-polkit-gnome-au---2*[{polkit-gnome-a+
¦ ¦ ¦ +-ssh-agent
¦ ¦ ¦ +-telepathy-indic---2*[{telepathy-indi+
¦ ¦ ¦ +-update-notifier---3*[{update-notifie+
¦ ¦ ¦ +-3*[{gnome-session}]
¦ ¦ +-{lightdm}
¦ +-2*[{lightdm}]
+-mission-control---2*[{mission-control}]
+-modem-manager
+-notify-osd---2*[{notify-osd}]
+-polkitd---{polkitd}
+-pulseaudio---2*[{pulseaudio}]
+-rsyslogd---3*[{rsyslogd}]
+-rtkit-daemon---2*[{rtkit-daemon}]
+-sh---gtk-window-deco---2*[{gtk-window-deco}]
+-tpvmlp
+-ubuntuone-syncd---3*[{ubuntuone-syncd}]
+-udevd---2*[udevd]
+-udisksd---4*[{udisksd}]
+-unity-applicati---2*[{unity-applicati}]
+-unity-files-dae---3*[{unity-files-dae}]
+-unity-lens-frie---2*[{unity-lens-frie}]
+-unity-lens-phot---sh---pxgsettings---2*[{pxgsettings}]
¦ +-3*[{unity-lens-phot}]
+-unity-music-dae---{unity-music-dae}
+-unity-musicstor---2*[{unity-musicstor}]
+-unity-panel-ser---2*[{unity-panel-ser}]
+-unity-scope-gdr---3*[{unity-scope-gdr}]
+-unity-scope-vid---sh---pxgsettings---2*[{pxgsettings}]
¦ +-2*[{unity-scope-vid}]
+-unity-shopping----sh---pxgsettings---2*[{pxgsettings}]
¦ +-2*[{unity-shopping-}]
+-unity-video-len---2*[{unity-video-len}]
+-unity-webapps-s---2*[{unity-webapps-s}]
+-update-manager---2*[{update-manager}]
+-upowerd---2*[{upowerd}]
+-upstart-file-br
+-upstart-socket-
+-upstart-udev-br
+-vmtoolsd
+-vmtoolsd---2*[{vmtoolsd}]
+-vmware-vmblock----3*[{vmware-vmblock-}]
+-whoopsie---{whoopsie}
+-zeitgeist-daemo---{zeitgeist-daemo}
+-zeitgeist-datah---2*[{zeitgeist-datah}]
+-zeitgeist-fts---cat
+-{zeitgeist-fts}2. Use ASCII characters to draw the tree by passing the -A option
$ pstree -A
init-+-NetworkManager-+-dhclient
| |-dnsmasq
| `-3*[{NetworkManager}]
|-accounts-daemon---2*[{accounts-daemon}]
|-acpid
|-at-spi-bus-laun---2*[{at-spi-bus-laun}]
|-avahi-daemon---avahi-daemon
|-bamfdaemon---3*[{bamfdaemon}]
|-bluetoothd
|-colord---{colord}
|-console-kit-dae---64*[{console-kit-dae}]
|-cron
|-cups-browsed
|-cupsd
|-2*[dbus-daemon]
|-dbus-launch
|-dconf-service---2*[{dconf-service}]
|-evolution-sourc---2*[{evolution-sourc}]
|-gconfd-2
|-6*[getty]
|-gnome-keyring-d---7*[{gnome-keyring-d}]
|-gnome-terminal-+-bash---pstree
| |-gnome-pty-helpe
| `-3*[{gnome-terminal}]
|-gvfs-afc-volume---2*[{gvfs-afc-volume}]
|-gvfs-gphoto2-vo---{gvfs-gphoto2-vo}
|-gvfs-mtp-volume---{gvfs-mtp-volume}
|-gvfs-udisks2-vo---{gvfs-udisks2-vo}
|-gvfsd---{gvfsd}
|-gvfsd-burn---2*[{gvfsd-burn}]
|-gvfsd-fuse---4*[{gvfsd-fuse}]
|-gvfsd-http-+-sh---pxgsettings---2*[{pxgsettings}]
| `-4*[{gvfsd-http}]
|-gvfsd-metadata---{gvfsd-metadata}
|-gvfsd-trash---6*[{gvfsd-trash}]
|-hud-service---2*[{hud-service}]
|-indicator-appli---{indicator-appli}
|-indicator-bluet---2*[{indicator-bluet}]
|-indicator-datet---3*[{indicator-datet}]
|-indicator-messa---2*[{indicator-messa}]
|-indicator-print---2*[{indicator-print}]
|-indicator-sessi---2*[{indicator-sessi}]
|-indicator-sound---2*[{indicator-sound}]
|-indicator-sync----{indicator-sync-}
|-lightdm-+-Xorg
| |-lightdm-+-gnome-session-+-compiz---3*[{compiz}]
| | | |-deja-dup-monito---2*[{deja-dup-monit+
| | | |-gnome-fallback----2*[{gnome-fallback+
| | | |-gnome-screensav---2*[{gnome-screensa+
| | | |-gnome-settings--+-check_gl_textur
| | | | `-2*[{gnome-settings+
| | | |-nautilus---3*[{nautilus}]
| | | |-nm-applet---3*[{nm-applet}]
| | | |-polkit-gnome-au---2*[{polkit-gnome-a+
| | | |-ssh-agent
| | | |-telepathy-indic---2*[{telepathy-indi+
| | | |-update-notifier---3*[{update-notifie+
| | | `-3*[{gnome-session}]
| | `-{lightdm}
| `-2*[{lightdm}]
|-mission-control---2*[{mission-control}]
|-modem-manager
|-notify-osd---2*[{notify-osd}]
|-polkitd---{polkitd}
|-pulseaudio---2*[{pulseaudio}]
|-rsyslogd---3*[{rsyslogd}]
|-rtkit-daemon---2*[{rtkit-daemon}]
|-sh---gtk-window-deco---2*[{gtk-window-deco}]
|-tpvmlp
|-ubuntuone-syncd---3*[{ubuntuone-syncd}]
|-udevd---2*[udevd]
|-udisksd---4*[{udisksd}]
|-unity-applicati---2*[{unity-applicati}]
|-unity-files-dae---3*[{unity-files-dae}]
|-unity-lens-frie---2*[{unity-lens-frie}]
|-unity-lens-phot-+-sh---pxgsettings---2*[{pxgsettings}]
| `-3*[{unity-lens-phot}]
|-unity-music-dae---{unity-music-dae}
|-unity-musicstor---2*[{unity-musicstor}]
|-unity-panel-ser---2*[{unity-panel-ser}]
|-unity-scope-gdr---3*[{unity-scope-gdr}]
|-unity-scope-vid-+-sh---pxgsettings---2*[{pxgsettings}]
| `-2*[{unity-scope-vid}]
|-unity-shopping--+-sh---pxgsettings---2*[{pxgsettings}]
| `-2*[{unity-shopping-}]
|-unity-video-len---2*[{unity-video-len}]
|-unity-webapps-s---2*[{unity-webapps-s}]
|-update-manager---2*[{update-manager}]
|-upowerd---2*[{upowerd}]
|-upstart-file-br
|-upstart-socket-
|-upstart-udev-br
|-vmtoolsd
|-vmtoolsd---2*[{vmtoolsd}]
|-vmware-vmblock----3*[{vmware-vmblock-}]
|-whoopsie---{whoopsie}
|-zeitgeist-daemo---{zeitgeist-daemo}
|-zeitgeist-datah---2*[{zeitgeist-datah}]
`-zeitgeist-fts-+-cat
`-{zeitgeist-fts}3. Display command line arguments along-with tree
$ pstree -a
init
+-NetworkManager
¦ +-dhclient -d -sf /usr/lib/NetworkManager/nm-dhcp-client.action -pf...
¦ +-dnsmasq --no-resolv --keep-in-foreground --no-hosts ...
¦ +-3*[{NetworkManager}]
+-accounts-daemon
¦ +-2*[{accounts-daemon}]
+-acpid -c /etc/acpi/events -s /var/run/acpid.socket
+-at-spi-bus-laun
¦ +-2*[{at-spi-bus-laun}]
+-avahi-daemon
¦ +-avahi-daemon
+-bamfdaemon
¦ +-3*[{bamfdaemon}]
+-bluetoothd
+-colord
¦ +-{colord}
+-console-kit-dae --no-daemon
¦ +-64*[{console-kit-dae}]
+-cron
+-cups-browsed
+-cupsd -F
+-dbus-daemon --system --fork
+-dbus-daemon --fork --print-pid 5 --print-address 7 --session
+-dbus-launch --exit-with-session /usr/bin/im-launch gnome-session--sess
+-dconf-service
¦ +-2*[{dconf-service}]
+-evolution-sourc
¦ +-2*[{evolution-sourc}]
+-gconfd-2
+-getty -8 38400 tty4
+-getty -8 38400 tty5
+-getty -8 38400 tty2
+-getty -8 38400 tty3
+-getty -8 38400 tty6
+-getty -8 38400 tty1
+-gnome-keyring-d --daemonize --login
¦ +-7*[{gnome-keyring-d}]
+-gnome-terminal
¦ +-bash
¦ ¦ +-pstree -a
¦ +-gnome-pty-helpe
¦ +-3*[{gnome-terminal}]
+-gvfs-afc-volume
¦ +-2*[{gvfs-afc-volume}]
+-gvfs-gphoto2-vo
¦ +-{gvfs-gphoto2-vo}
+-gvfs-mtp-volume
¦ +-{gvfs-mtp-volume}
+-gvfs-udisks2-vo
¦ +-{gvfs-udisks2-vo}
+-gvfsd
¦ +-{gvfsd}
+-gvfsd-burn --spawner :1.6 /org/gtk/gvfs/exec_spaw/1
¦ +-2*[{gvfsd-burn}]
+-gvfsd-fuse -f /run/user/mohakkataria/gvfs
¦ +-4*[{gvfsd-fuse}]
+-gvfsd-http --spawner :1.6 /org/gtk/gvfs/exec_spaw/2
¦ +-sh -c...
¦ ¦ +-pxgsettings org.gnome.system.proxyorg.
¦ ¦ +-2*[{pxgsettings}]
¦ +-4*[{gvfsd-http}]
+-gvfsd-metadata
¦ +-{gvfsd-metadata}
+-gvfsd-trash --spawner :1.6 /org/gtk/gvfs/exec_spaw/0
¦ +-6*[{gvfsd-trash}]
+-hud-service
¦ +-2*[{hud-service}]
+-indicator-appli
¦ +-{indicator-appli}
+-indicator-bluet
¦ +-2*[{indicator-bluet}]
+-indicator-datet
¦ +-3*[{indicator-datet}]
+-indicator-messa
¦ +-2*[{indicator-messa}]
+-indicator-print
¦ +-2*[{indicator-print}]
+-indicator-sessi
¦ +-2*[{indicator-sessi}]
+-indicator-sound
¦ +-2*[{indicator-sound}]
+-indicator-sync-
¦ +-{indicator-sync-}
+-lightdm
¦ +-Xorg :0 -core -auth /var/run/lightdm/root/:0 -nolisten tcp vt7...
¦ +-lightdm --session-child 12 31
¦ ¦ +-gnome-session --session=ubuntu
¦ ¦ ¦ +-compiz
¦ ¦ ¦ ¦ +-3*[{compiz}]
¦ ¦ ¦ +-deja-dup-monito
¦ ¦ ¦ ¦ +-2*[{deja-dup-monito}]
¦ ¦ ¦ +-gnome-fallback-
¦ ¦ ¦ ¦ +-2*[{gnome-fallback-}]
¦ ¦ ¦ +-gnome-screensav
¦ ¦ ¦ ¦ +-2*[{gnome-screensav}]
¦ ¦ ¦ +-gnome-settings-
¦ ¦ ¦ ¦ +-(check_gl_textur)
¦ ¦ ¦ ¦ +-2*[{gnome-settings-}]
¦ ¦ ¦ +-nautilus -n
¦ ¦ ¦ ¦ +-3*[{nautilus}]
¦ ¦ ¦ +-nm-applet
¦ ¦ ¦ ¦ +-3*[{nm-applet}]
¦ ¦ ¦ +-polkit-gnome-au
¦ ¦ ¦ ¦ +-2*[{polkit-gnome-au}]
¦ ¦ ¦ +-ssh-agent /usr/bin/dbus-launch --exit-with-session ...
¦ ¦ ¦ +-telepathy-indic
¦ ¦ ¦ ¦ +-2*[{telepathy-indic}]
¦ ¦ ¦ +-update-notifier
¦ ¦ ¦ ¦ +-3*[{update-notifier}]
¦ ¦ ¦ +-3*[{gnome-session}]
¦ ¦ +-{lightdm}
¦ +-2*[{lightdm}]
+-mission-control
¦ +-2*[{mission-control}]
+-modem-manager
+-notify-osd
¦ +-2*[{notify-osd}]
+-polkitd --no-debug
¦ +-{polkitd}
+-pulseaudio --start --log-target=syslog
¦ +-2*[{pulseaudio}]
+-rsyslogd -c5
¦ +-3*[{rsyslogd}]
+-rtkit-daemon
¦ +-2*[{rtkit-daemon}]
+-sh -c /usr/bin/gtk-window-decorator
¦ +-gtk-window-deco
¦ +-2*[{gtk-window-deco}]
+-tpvmlp
+-ubuntuone-syncd /usr/lib/ubuntuone-client/ubuntuone-syncdaemon
¦ +-3*[{ubuntuone-syncd}]
+-udevd --daemon
¦ +-udevd --daemon
¦ +-udevd --daemon
+-udisksd --no-debug
¦ +-4*[{udisksd}]
+-unity-applicati
¦ +-2*[{unity-applicati}]
+-unity-files-dae
¦ +-3*[{unity-files-dae}]
+-unity-lens-frie
¦ +-2*[{unity-lens-frie}]
+-unity-lens-phot /usr/lib/unity-lens-photos/unity-lens-photos
¦ +-sh -c...
¦ ¦ +-pxgsettings org.gnome.system.proxyorg.
¦ ¦ +-2*[{pxgsettings}]
¦ +-3*[{unity-lens-phot}]
+-unity-music-dae
¦ +-{unity-music-dae}
+-unity-musicstor
¦ +-2*[{unity-musicstor}]
+-unity-panel-ser
¦ +-2*[{unity-panel-ser}]
+-unity-scope-gdr /usr/lib/unity-lens-files/unity-scope-gdrive
¦ +-3*[{unity-scope-gdr}]
+-unity-scope-vid
¦ +-sh -c...
¦ ¦ +-pxgsettings org.gnome.system.proxyorg.
¦ ¦ +-2*[{pxgsettings}]
¦ +-2*[{unity-scope-vid}]
+-unity-shopping-
¦ +-sh -c...
¦ ¦ +-pxgsettings org.gnome.system.proxyorg.
¦ ¦ +-2*[{pxgsettings}]
¦ +-2*[{unity-shopping-}]
+-unity-video-len
¦ +-2*[{unity-video-len}]
+-unity-webapps-s
¦ +-2*[{unity-webapps-s}]
+-update-manager /usr/bin/update-manager --no-update --no-focus-on-map
¦ +-2*[{update-manager}]
+-upowerd
¦ +-2*[{upowerd}]
+-upstart-file-br --daemon
+-upstart-socket- --daemon
+-upstart-udev-br --daemon
+-vmtoolsd
+-vmtoolsd -n vmusr --blockFd 3
¦ +-2*[{vmtoolsd}]
+-vmware-vmblock- -osubtype=vmware-vmblock,default_permissions,allo
¦ +-3*[{vmware-vmblock-}]
+-whoopsie
¦ +-{whoopsie}
+-zeitgeist-daemo
¦ +-{zeitgeist-daemo}
+-zeitgeist-datah
¦ +-2*[{zeitgeist-datah}]
+-zeitgeist-fts
+-cat
+-{zeitgeist-fts}4. Display PIDs
$ pstree -p
init(1)---NetworkManager(905)---dhclient(18540)
¦ +-dnsmasq(1199)
¦ +-{NetworkManager}(906)
¦ +-{NetworkManager}(913)
¦ +-{NetworkManager}(946)
+-accounts-daemon(1345)---{accounts-daemon}(1350)
¦ +-{accounts-daemon}(1414)
+-acpid(1035)
+-at-spi-bus-laun(10192)---{at-spi-bus-laun}(10193)
¦ +-{at-spi-bus-laun}(10195)
+-avahi-daemon(627)---avahi-daemon(629)
+-bamfdaemon(7329)---{bamfdaemon}(7335)
¦ +-{bamfdaemon}(7336)
¦ +-{bamfdaemon}(7338)
+-bluetoothd(599)
+-colord(911)---{colord}(927)
+-console-kit-dae(1481)---{console-kit-dae}(1488)
¦ +-{console-kit-dae}(1489)
¦ +-{console-kit-dae}(1490)
¦ +-{console-kit-dae}(1491)
¦ +-{console-kit-dae}(1492)
¦ +-{console-kit-dae}(1493)
¦ +-{console-kit-dae}(1494)
¦ +-{console-kit-dae}(1495)
¦ +-{console-kit-dae}(1496)
¦ +-{console-kit-dae}(1497)
¦ +-{console-kit-dae}(1498)
¦ +-{console-kit-dae}(1499)
¦ +-{console-kit-dae}(1500)
¦ +-{console-kit-dae}(1501)
¦ +-{console-kit-dae}(1502)
¦ +-{console-kit-dae}(1503)
¦ +-{console-kit-dae}(1504)
¦ +-{console-kit-dae}(1505)
¦ +-{console-kit-dae}(1506)
¦ +-{console-kit-dae}(1507)
¦ +-{console-kit-dae}(1508)
¦ +-{console-kit-dae}(1509)
¦ +-{console-kit-dae}(1510)
¦ +-{console-kit-dae}(1511)
¦ +-{console-kit-dae}(1512)
¦ +-{console-kit-dae}(1513)
¦ +-{console-kit-dae}(1514)
¦ +-{console-kit-dae}(1515)
¦ +-{console-kit-dae}(1516)
¦ +-{console-kit-dae}(1517)
¦ +-{console-kit-dae}(1518)
¦ +-{console-kit-dae}(1519)
¦ +-{console-kit-dae}(1520)
¦ +-{console-kit-dae}(1521)
¦ +-{console-kit-dae}(1522)
¦ +-{console-kit-dae}(1523)
¦ +-{console-kit-dae}(1524)
¦ +-{console-kit-dae}(1525)
¦ +-{console-kit-dae}(1526)
¦ +-{console-kit-dae}(1527)
¦ +-{console-kit-dae}(1528)
¦ +-{console-kit-dae}(1529)
¦ +-{console-kit-dae}(1530)
¦ +-{console-kit-dae}(1531)
¦ +-{console-kit-dae}(1532)
¦ +-{console-kit-dae}(1533)
¦ +-{console-kit-dae}(1534)
¦ +-{console-kit-dae}(1535)
¦ +-{console-kit-dae}(1536)
¦ +-{console-kit-dae}(1537)
¦ +-{console-kit-dae}(1538)
¦ +-{console-kit-dae}(1539)
¦ +-{console-kit-dae}(1540)
¦ +-{console-kit-dae}(1541)
¦ +-{console-kit-dae}(1542)
¦ +-{console-kit-dae}(1543)
¦ +-{console-kit-dae}(1544)
¦ +-{console-kit-dae}(1545)
¦ +-{console-kit-dae}(1546)
¦ +-{console-kit-dae}(1547)
¦ +-{console-kit-dae}(1548)
¦ +-{console-kit-dae}(1549)
¦ +-{console-kit-dae}(1613)
¦ +-{console-kit-dae}(1614)
+-cron(1063)
+-cups-browsed(924)
+-cupsd(793)
+-dbus-daemon(480)
+-dbus-daemon(7177)
+-dbus-launch(7176)
+-dconf-service(7236)---{dconf-service}(7237)
¦ +-{dconf-service}(7238)
+-evolution-sourc(7432)---{evolution-sourc}(7433)
¦ +-{evolution-sourc}(7435)
+-gconfd-2(7287)
+-getty(970)
+-getty(975)
+-getty(1014)
+-getty(1015)
+-getty(1019)
+-getty(1463)
+-gnome-keyring-d(7117)---{gnome-keyring-d}(7118)
¦ +-{gnome-keyring-d}(7192)
¦ +-{gnome-keyring-d}(7193)
¦ +-{gnome-keyring-d}(7194)
¦ +-{gnome-keyring-d}(7436)
¦ +-{gnome-keyring-d}(7517)
¦ +-{gnome-keyring-d}(7584)
+-gnome-terminal(11413)---bash(11424)---pstree(18889)
¦ +-gnome-pty-helpe(11423)
¦ +-{gnome-terminal}(11417)
¦ +-{gnome-terminal}(11418)
¦ +-{gnome-terminal}(11428)
+-gvfs-afc-volume(7277)---{gvfs-afc-volume}(7278)
¦ +-{gvfs-afc-volume}(7280)
+-gvfs-gphoto2-vo(7273)---{gvfs-gphoto2-vo}(7275)
+-gvfs-mtp-volume(7268)---{gvfs-mtp-volume}(7271)
+-gvfs-udisks2-vo(7253)---{gvfs-udisks2-vo}(7262)
+-gvfsd(7210)---{gvfsd}(7211)
+-gvfsd-burn(7298)---{gvfsd-burn}(7299)
¦ +-{gvfsd-burn}(7301)
+-gvfsd-fuse(7214)---{gvfsd-fuse}(7218)
¦ +-{gvfsd-fuse}(7219)
¦ +-{gvfsd-fuse}(7220)
¦ +-{gvfsd-fuse}(7221)
+-gvfsd-http(7635)---sh(7645)---pxgsettings(7647)---{pxgsettings}(7653)
¦ ¦ +-{pxgsettings}(7657)
¦ +-{gvfsd-http}(7638)
¦ +-{gvfsd-http}(7644)
¦ +-{gvfsd-http}(10495)
¦ +-{gvfsd-http}(11147)
+-gvfsd-metadata(9684)---{gvfsd-metadata}(9692)
+-gvfsd-trash(7292)---{gvfsd-trash}(7293)
¦ +-{gvfsd-trash}(7296)
¦ +-{gvfsd-trash}(7302)
¦ +-{gvfsd-trash}(7303)
¦ +-{gvfsd-trash}(14590)
¦ +-{gvfsd-trash}(14592)
+-hud-service(7355)---{hud-service}(7365)
¦ +-{hud-service}(7366)
+-indicator-appli(7390)---{indicator-appli}(7406)
+-indicator-bluet(7391)---{indicator-bluet}(7417)
¦ +-{indicator-bluet}(7421)
+-indicator-datet(7388)---{indicator-datet}(7426)
¦ +-{indicator-datet}(7428)
¦ +-{indicator-datet}(7429)
+-indicator-messa(7386)---{indicator-messa}(7416)
¦ +-{indicator-messa}(7420)
+-indicator-print(7384)---{indicator-print}(7430)
¦ +-{indicator-print}(7434)
+-indicator-sessi(7379)---{indicator-sessi}(7395)
¦ +-{indicator-sessi}(7396)
+-indicator-sound(7378)---{indicator-sound}(7409)
¦ +-{indicator-sound}(7427)
+-indicator-sync-(7382)---{indicator-sync-}(7399)
+-lightdm(1086)---Xorg(6920)
¦ +-lightdm(7011)---gnome-session(7127)---compiz(14575)--+++
¦ ¦ ¦ ¦ ++++
¦ ¦ ¦ ¦ ++++
¦ ¦ ¦ +-deja-dup-monito+
¦ ¦ ¦ +-gnome-fallback-+
¦ ¦ ¦ +-gnome-screensav+
¦ ¦ ¦ +-gnome-settings-+
¦ ¦ ¦ +-nautilus(7239)-+++
¦ ¦ ¦ ¦ +++
¦ ¦ ¦ ¦ +++
¦ ¦ ¦ +-nm-applet(7247)+++
¦ ¦ ¦ +-polkit-gnome-au+
¦ ¦ ¦ +-ssh-agent(7173)
¦ ¦ ¦ +-telepathy-indic+
¦ ¦ ¦ +-update-notifier+
¦ ¦ ¦ +-{gnome-session}+
¦ ¦ ¦ +-{gnome-session}+
¦ ¦ ¦ +-{gnome-session}+
¦ ¦ +-{lightdm}(7078)
¦ +-{lightdm}(1101)
¦ +-{lightdm}(1102)
+-mission-control(7727)---{mission-control}(7730)
¦ +-{mission-control}(7732)
+-modem-manager(834)
+-notify-osd(9980)---{notify-osd}(9981)
¦ +-{notify-osd}(9982)
+-polkitd(915)---{polkitd}(919)
+-pulseaudio(7205)---{pulseaudio}(7217)
¦ +-{pulseaudio}(7222)
+-rsyslogd(386)---{rsyslogd}(475)
¦ +-{rsyslogd}(476)
¦ +-{rsyslogd}(477)
+-rtkit-daemon(1930)---{rtkit-daemon}(1932)
¦ +-{rtkit-daemon}(1933)
+-sh(7350)---gtk-window-deco(7351)---{gtk-window-deco}(7360)
¦ +-{gtk-window-deco}(7364)
+-tpvmlp(1382)
+-ubuntuone-syncd(7758)---{ubuntuone-syncd}(7759)
¦ +-{ubuntuone-syncd}(7777)
¦ +-{ubuntuone-syncd}(7780)
+-udevd(355)---udevd(12321)
¦ +-udevd(12322)
+-udisksd(2171)---{udisksd}(2173)
¦ +-{udisksd}(2175)
¦ +-{udisksd}(2177)
¦ +-{udisksd}(2190)
+-unity-applicati(7456)---{unity-applicati}(7475)
¦ +-{unity-applicati}(7506)
+-unity-files-dae(7454)---{unity-files-dae}(7470)
¦ +-{unity-files-dae}(7503)
¦ +-{unity-files-dae}(7595)
+-unity-lens-frie(7453)---{unity-lens-frie}(7469)
¦ +-{unity-lens-frie}(7488)
+-unity-lens-phot(7457)---sh(7573)---pxgsettings(7574)---{pxgsettings}(+
¦ ¦ +-{pxgsettings}(+
¦ +-{unity-lens-phot}(7558)
¦ +-{unity-lens-phot}(7572)
¦ +-{unity-lens-phot}(7594)
+-unity-music-dae(7455)---{unity-music-dae}(7464)
+-unity-musicstor(7616)---{unity-musicstor}(7617)
¦ +-{unity-musicstor}(7618)
+-unity-panel-ser(7353)---{unity-panel-ser}(7373)
¦ +-{unity-panel-ser}(7374)
+-unity-scope-gdr(7580)---{unity-scope-gdr}(7606)
¦ +-{unity-scope-gdr}(7607)
¦ +-{unity-scope-gdr}(7614)
+-unity-scope-vid(7579)---sh(7585)---pxgsettings(7586)---{pxgsettings}(+
¦ ¦ +-{pxgsettings}(+
¦ +-{unity-scope-vid}(7581)
¦ +-{unity-scope-vid}(7582)
+-unity-shopping-(7459)---sh(7547)---pxgsettings(7549)---{pxgsettings}(+
¦ ¦ +-{pxgsettings}(+
¦ +-{unity-shopping-}(7479)
¦ +-{unity-shopping-}(7516)
+-unity-video-len(7461)---{unity-video-len}(7476)
¦ +-{unity-video-len}(7524)
+-unity-webapps-s(10179)---{unity-webapps-s}(10183)
¦ +-{unity-webapps-s}(10189)
+-update-manager(12196)---{update-manager}(12206)
¦ +-{update-manager}(12208)
+-upowerd(1706)---{upowerd}(1707)
¦ +-{upowerd}(1708)
+-upstart-file-br(284)
+-upstart-socket-(803)
+-upstart-udev-br(352)
+-vmtoolsd(1305)
+-vmtoolsd(7254)---{vmtoolsd}(7339)
¦ +-{vmtoolsd}(7349)
+-vmware-vmblock-(1237)---{vmware-vmblock-}(1240)
¦ +-{vmware-vmblock-}(1241)
¦ +-{vmware-vmblock-}(14130)
+-whoopsie(1236)---{whoopsie}(1243)
¦ +-{whoopsie}(18887)
+-zeitgeist-daemo(7519)---{zeitgeist-daemo}(7523)
+-zeitgeist-datah(7543)---{zeitgeist-datah}(7551)
¦ +-{zeitgeist-datah}(11120)
+-zeitgeist-fts(7542)---cat(7546)
+-{zeitgeist-fts}(7545)5. Numeric Sort using -n option
To sort processes with the same ancestor by PID instead of by name i.e. numeric sort, pass the -n options as follows:
$ pstree -np
init(1)---upstart-file-br(284)
+-upstart-udev-br(352)
+-udevd(355)---udevd(12321)
¦ +-udevd(12322)
+-rsyslogd(386)---{rsyslogd}(475)
¦ +-{rsyslogd}(476)
¦ +-{rsyslogd}(477)
+-dbus-daemon(480)
+-bluetoothd(599)
+-avahi-daemon(627)---avahi-daemon(629)
+-cupsd(793)
+-upstart-socket-(803)
+-modem-manager(834)
+-NetworkManager(905)---{NetworkManager}(906)
¦ +-{NetworkManager}(913)
¦ +-{NetworkManager}(946)
¦ +-dnsmasq(1199)
¦ +-dhclient(18540)
+-colord(911)---{colord}(927)
+-polkitd(915)---{polkitd}(919)
+-cups-browsed(924)
+-getty(970)
+-getty(975)
+-getty(1014)
+-getty(1015)
+-getty(1019)
+-acpid(1035)
+-cron(1063)
+-lightdm(1086)---{lightdm}(1101)
¦ +-{lightdm}(1102)
¦ +-Xorg(6920)
¦ +-lightdm(7011)---{lightdm}(7078)
¦ +-gnome-session(7127)---ssh-agent(7173)
¦ +-{gnome-session}+
¦ +-{gnome-session}+
¦ +-{gnome-session}+
¦ +-gnome-settings-+
¦ +-nautilus(7239)-+++
¦ ¦ +++
¦ ¦ +++
¦ +-polkit-gnome-au+
¦ +-nm-applet(7247)+++
¦ +-gnome-fallback-+
¦ +-telepathy-indic+
¦ +-gnome-screensav+
¦ +-update-notifier+
¦ +-deja-dup-monito+
¦ +-compiz(14575)--+++
¦ ++++
¦ ++++
+-whoopsie(1236)---{whoopsie}(1243)
¦ +-{whoopsie}(18902)
+-vmware-vmblock-(1237)---{vmware-vmblock-}(1240)
¦ +-{vmware-vmblock-}(1241)
¦ +-{vmware-vmblock-}(14130)
+-vmtoolsd(1305)
+-accounts-daemon(1345)---{accounts-daemon}(1350)
¦ +-{accounts-daemon}(1414)
+-tpvmlp(1382)
+-getty(1463)
+-console-kit-dae(1481)---{console-kit-dae}(1488)
¦ +-{console-kit-dae}(1489)
¦ +-{console-kit-dae}(1490)
¦ +-{console-kit-dae}(1491)
¦ +-{console-kit-dae}(1492)
¦ +-{console-kit-dae}(1493)
¦ +-{console-kit-dae}(1494)
¦ +-{console-kit-dae}(1495)
¦ +-{console-kit-dae}(1496)
¦ +-{console-kit-dae}(1497)
¦ +-{console-kit-dae}(1498)
¦ +-{console-kit-dae}(1499)
¦ +-{console-kit-dae}(1500)
¦ +-{console-kit-dae}(1501)
¦ +-{console-kit-dae}(1502)
¦ +-{console-kit-dae}(1503)
¦ +-{console-kit-dae}(1504)
¦ +-{console-kit-dae}(1505)
¦ +-{console-kit-dae}(1506)
¦ +-{console-kit-dae}(1507)
¦ +-{console-kit-dae}(1508)
¦ +-{console-kit-dae}(1509)
¦ +-{console-kit-dae}(1510)
¦ +-{console-kit-dae}(1511)
¦ +-{console-kit-dae}(1512)
¦ +-{console-kit-dae}(1513)
¦ +-{console-kit-dae}(1514)
¦ +-{console-kit-dae}(1515)
¦ +-{console-kit-dae}(1516)
¦ +-{console-kit-dae}(1517)
¦ +-{console-kit-dae}(1518)
¦ +-{console-kit-dae}(1519)
¦ +-{console-kit-dae}(1520)
¦ +-{console-kit-dae}(1521)
¦ +-{console-kit-dae}(1522)
¦ +-{console-kit-dae}(1523)
¦ +-{console-kit-dae}(1524)
¦ +-{console-kit-dae}(1525)
¦ +-{console-kit-dae}(1526)
¦ +-{console-kit-dae}(1527)
¦ +-{console-kit-dae}(1528)
¦ +-{console-kit-dae}(1529)
¦ +-{console-kit-dae}(1530)
¦ +-{console-kit-dae}(1531)
¦ +-{console-kit-dae}(1532)
¦ +-{console-kit-dae}(1533)
¦ +-{console-kit-dae}(1534)
¦ +-{console-kit-dae}(1535)
¦ +-{console-kit-dae}(1536)
¦ +-{console-kit-dae}(1537)
¦ +-{console-kit-dae}(1538)
¦ +-{console-kit-dae}(1539)
¦ +-{console-kit-dae}(1540)
¦ +-{console-kit-dae}(1541)
¦ +-{console-kit-dae}(1542)
¦ +-{console-kit-dae}(1543)
¦ +-{console-kit-dae}(1544)
¦ +-{console-kit-dae}(1545)
¦ +-{console-kit-dae}(1546)
¦ +-{console-kit-dae}(1547)
¦ +-{console-kit-dae}(1548)
¦ +-{console-kit-dae}(1549)
¦ +-{console-kit-dae}(1613)
¦ +-{console-kit-dae}(1614)
+-upowerd(1706)---{upowerd}(1707)
¦ +-{upowerd}(1708)
+-rtkit-daemon(1930)---{rtkit-daemon}(1932)
¦ +-{rtkit-daemon}(1933)
+-udisksd(2171)---{udisksd}(2173)
¦ +-{udisksd}(2175)
¦ +-{udisksd}(2177)
¦ +-{udisksd}(2190)
+-gnome-keyring-d(7117)---{gnome-keyring-d}(7118)
¦ +-{gnome-keyring-d}(7192)
¦ +-{gnome-keyring-d}(7193)
¦ +-{gnome-keyring-d}(7194)
¦ +-{gnome-keyring-d}(7436)
¦ +-{gnome-keyring-d}(7517)
¦ +-{gnome-keyring-d}(7584)
+-dbus-launch(7176)
+-dbus-daemon(7177)
+-pulseaudio(7205)---{pulseaudio}(7217)
¦ +-{pulseaudio}(7222)
+-gvfsd(7210)---{gvfsd}(7211)
+-gvfsd-fuse(7214)---{gvfsd-fuse}(7218)
¦ +-{gvfsd-fuse}(7219)
¦ +-{gvfsd-fuse}(7220)
¦ +-{gvfsd-fuse}(7221)
+-dconf-service(7236)---{dconf-service}(7237)
¦ +-{dconf-service}(7238)
+-gvfs-udisks2-vo(7253)---{gvfs-udisks2-vo}(7262)
+-vmtoolsd(7254)---{vmtoolsd}(7339)
¦ +-{vmtoolsd}(7349)
+-gvfs-mtp-volume(7268)---{gvfs-mtp-volume}(7271)
+-gvfs-gphoto2-vo(7273)---{gvfs-gphoto2-vo}(7275)
+-gvfs-afc-volume(7277)---{gvfs-afc-volume}(7278)
¦ +-{gvfs-afc-volume}(7280)
+-gconfd-2(7287)
+-gvfsd-trash(7292)---{gvfsd-trash}(7293)
¦ +-{gvfsd-trash}(7296)
¦ +-{gvfsd-trash}(7302)
¦ +-{gvfsd-trash}(7303)
¦ +-{gvfsd-trash}(14590)
¦ +-{gvfsd-trash}(14592)
+-gvfsd-burn(7298)---{gvfsd-burn}(7299)
¦ +-{gvfsd-burn}(7301)
+-bamfdaemon(7329)---{bamfdaemon}(7335)
¦ +-{bamfdaemon}(7336)
¦ +-{bamfdaemon}(7338)
+-sh(7350)---gtk-window-deco(7351)---{gtk-window-deco}(7360)
¦ +-{gtk-window-deco}(7364)
+-unity-panel-ser(7353)---{unity-panel-ser}(7373)
¦ +-{unity-panel-ser}(7374)
+-hud-service(7355)---{hud-service}(7365)
¦ +-{hud-service}(7366)
+-indicator-sound(7378)---{indicator-sound}(7409)
¦ +-{indicator-sound}(7427)
+-indicator-sessi(7379)---{indicator-sessi}(7395)
¦ +-{indicator-sessi}(7396)
+-indicator-sync-(7382)---{indicator-sync-}(7399)
+-indicator-print(7384)---{indicator-print}(7430)
¦ +-{indicator-print}(7434)
+-indicator-messa(7386)---{indicator-messa}(7416)
¦ +-{indicator-messa}(7420)
+-indicator-datet(7388)---{indicator-datet}(7426)
¦ +-{indicator-datet}(7428)
¦ +-{indicator-datet}(7429)
+-indicator-appli(7390)---{indicator-appli}(7406)
+-indicator-bluet(7391)---{indicator-bluet}(7417)
¦ +-{indicator-bluet}(7421)
+-evolution-sourc(7432)---{evolution-sourc}(7433)
¦ +-{evolution-sourc}(7435)
+-unity-lens-frie(7453)---{unity-lens-frie}(7469)
¦ +-{unity-lens-frie}(7488)
+-unity-files-dae(7454)---{unity-files-dae}(7470)
¦ +-{unity-files-dae}(7503)
¦ +-{unity-files-dae}(7595)
+-unity-music-dae(7455)---{unity-music-dae}(7464)
+-unity-applicati(7456)---{unity-applicati}(7475)
¦ +-{unity-applicati}(7506)
+-unity-lens-phot(7457)---{unity-lens-phot}(7558)
¦ +-{unity-lens-phot}(7572)
¦ +-sh(7573)---pxgsettings(7574)---{pxgsettings}(+
¦ ¦ +-{pxgsettings}(+
¦ +-{unity-lens-phot}(7594)
+-unity-shopping-(7459)---{unity-shopping-}(7479)
¦ +-{unity-shopping-}(7516)
¦ +-sh(7547)---pxgsettings(7549)---{pxgsettings}(+
¦ +-{pxgsettings}(+
+-unity-video-len(7461)---{unity-video-len}(7476)
¦ +-{unity-video-len}(7524)
+-zeitgeist-daemo(7519)---{zeitgeist-daemo}(7523)
+-zeitgeist-fts(7542)---{zeitgeist-fts}(7545)
¦ +-cat(7546)
+-zeitgeist-datah(7543)---{zeitgeist-datah}(7551)
¦ +-{zeitgeist-datah}(11120)
+-unity-scope-vid(7579)---{unity-scope-vid}(7581)
¦ +-{unity-scope-vid}(7582)
¦ +-sh(7585)---pxgsettings(7586)---{pxgsettings}(+
¦ +-{pxgsettings}(+
+-unity-scope-gdr(7580)---{unity-scope-gdr}(7606)
¦ +-{unity-scope-gdr}(7607)
¦ +-{unity-scope-gdr}(7614)
+-unity-musicstor(7616)---{unity-musicstor}(7617)
¦ +-{unity-musicstor}(7618)
+-gvfsd-http(7635)---{gvfsd-http}(7638)
¦ +-{gvfsd-http}(7644)
¦ +-sh(7645)---pxgsettings(7647)---{pxgsettings}(7653)
¦ ¦ +-{pxgsettings}(7657)
¦ +-{gvfsd-http}(10495)
¦ +-{gvfsd-http}(11147)
+-mission-control(7727)---{mission-control}(7730)
¦ +-{mission-control}(7732)
+-ubuntuone-syncd(7758)---{ubuntuone-syncd}(7759)
¦ +-{ubuntuone-syncd}(7777)
¦ +-{ubuntuone-syncd}(7780)
+-gvfsd-metadata(9684)---{gvfsd-metadata}(9692)
+-notify-osd(9980)---{notify-osd}(9981)
¦ +-{notify-osd}(9982)
+-unity-webapps-s(10179)---{unity-webapps-s}(10183)
¦ +-{unity-webapps-s}(10189)
+-at-spi-bus-laun(10192)---{at-spi-bus-laun}(10193)
¦ +-{at-spi-bus-laun}(10195)
+-gnome-terminal(11413)---{gnome-terminal}(11417)
¦ +-{gnome-terminal}(11418)
¦ +-gnome-pty-helpe(11423)
¦ +-bash(11424)---pstree(18906)
¦ +-{gnome-terminal}(11428)
+-update-manager(12196)---{update-manager}(12206)
+-{update-manager}(12208)6. View a process by PID
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$ pstree 7542
zeitgeist-fts---cat
+-{zeitgeist-fts}7. Highlight the current process or any other process
Pass the -h option to highlight the current process and its ancestors. Pass -H option highlight the specified process (by name/pid):
$ pstree -h
OR highlight process with PID # 60093:
$ pstree -H 60093
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