Linux Command
systemd-+-ModemManager---3*[{ModemManager}]
|-NetworkManager---3*[{NetworkManager}]
|-accounts-daemon---3*[{accounts-daemon}]
|-avahi-daemon---avahi-daemon
|-bluetoothd
|-colord---3*[{colord}]
|-cron
|-cups-browsed---3*[{cups-browsed}]
|-cupsd
|-dbus-daemon
|-exim4
|-fwupd---5*[{fwupd}]
|-gdm3-+-gdm-session-wor-+-gdm-x-session-+-Xorg---13*[{Xorg}]
| | | |-gnome-session-b-+-ssh-agent
| | | | `-4*[{gnome-session-b}]
| | | `-3*[{gdm-x-session}]
| | `-3*[{gdm-session-wor}]
| `-3*[{gdm3}]
|-geoclue---3*[{geoclue}]
|-gpm
|-nm-dispatcher---4*[{nm-dispatcher}]
|-polkitd---3*[{polkitd}]
|-power-profiles----3*[{power-profiles-}]
|-rsyslogd---3*[{rsyslogd}]
|-rtkit-daemon---2*[{rtkit-daemon}]
|-sshd
|-switcheroo-cont---3*[{switcheroo-cont}]
|-systemd-+-(sd-pam)
| |-at-spi-bus-laun-+-dbus-daemon
| | `-4*[{at-spi-bus-laun}]
| |-at-spi2-registr---3*[{at-spi2-registr}]
| |-dbus-daemon
| |-dconf-service---3*[{dconf-service}]
| |-evolution-addre---6*[{evolution-addre}]
| |-evolution-calen---9*[{evolution-calen}]
| |-evolution-sourc---4*[{evolution-sourc}]
| |-gcr-ssh-agent---2*[{gcr-ssh-agent}]
| |-2*[gjs---11*[{gjs}]]
| |-gnome-keyring-d---4*[{gnome-keyring-d}]
| |-gnome-session-b-+-evolution-alarm---7*[{evolution-alarm}]
| | |-gnome-software---16*[{gnome-software}]
| | |-gsd-disk-utilit---3*[{gsd-disk-utilit}]
| | `-4*[{gnome-session-b}]
| |-gnome-session-c---{gnome-session-c}
| |-gnome-shell-+-firefox-+-Isolated Servic---20*[{Isolated Servic}]
| | | |-Isolated Web Co---23*[{Isolated Web Co}]
| | | |-3*[Isolated Web Co---17*[{Isolated Web Co}]]
| | | |-3*[Isolated Web Co---18*[{Isolated Web Co}]]
| | | |-Privileged Cont---18*[{Privileged Cont}]
| | | |-RDD Process---3*[{RDD Process}]
| | | |-Socket Process---4*[{Socket Process}]
| | | |-Utility Process---3*[{Utility Process}]
| | | |-3*[Web Content---10*[{Web Content}]]
| | | |-WebExtensions---17*[{WebExtensions}]
| | | `-182*[{firefox}]
| | |-mutter-x11-fram---14*[{mutter-x11-fram}]
| | `-35*[{gnome-shell}]
| |-gnome-shell-cal---6*[{gnome-shell-cal}]
| |-gnome-terminal--+-bash---git-+-git---git-remote-http
| | | |-git
| | | `-{git}
| | |-bash---pstree
| | `-5*[{gnome-terminal-}]
| |-goa-daemon---4*[{goa-daemon}]
| |-goa-identity-se---3*[{goa-identity-se}]
| |-gsd-a11y-settin---4*[{gsd-a11y-settin}]
| |-gsd-color---4*[{gsd-color}]
| |-gsd-datetime---4*[{gsd-datetime}]
| |-gsd-housekeepin---4*[{gsd-housekeepin}]
| |-gsd-keyboard---4*[{gsd-keyboard}]
| |-gsd-media-keys---5*[{gsd-media-keys}]
| |-gsd-power---5*[{gsd-power}]
| |-gsd-print-notif---3*[{gsd-print-notif}]
| |-gsd-printer---3*[{gsd-printer}]
| |-gsd-rfkill---3*[{gsd-rfkill}]
| |-gsd-screensaver---3*[{gsd-screensaver}]
| |-gsd-sharing---4*[{gsd-sharing}]
| |-gsd-smartcard---4*[{gsd-smartcard}]
| |-gsd-sound---4*[{gsd-sound}]
| |-gsd-usb-protect---4*[{gsd-usb-protect}]
| |-gsd-wacom---3*[{gsd-wacom}]
| |-gsd-xsettings---4*[{gsd-xsettings}]
| |-gvfs-afc-volume---4*[{gvfs-afc-volume}]
| |-gvfs-goa-volume---3*[{gvfs-goa-volume}]
| |-gvfs-gphoto2-vo---3*[{gvfs-gphoto2-vo}]
| |-gvfs-mtp-volume---3*[{gvfs-mtp-volume}]
| |-gvfs-udisks2-vo---4*[{gvfs-udisks2-vo}]
| |-gvfsd-+-gvfsd-dnssd---3*[{gvfsd-dnssd}]
| | |-gvfsd-network---4*[{gvfsd-network}]
| | |-gvfsd-trash---4*[{gvfsd-trash}]
| | `-3*[{gvfsd}]
| |-gvfsd-fuse---6*[{gvfsd-fuse}]
| |-gvfsd-metadata---3*[{gvfsd-metadata}]
| |-ibus-daemon-+-ibus-dconf---4*[{ibus-dconf}]
| | |-ibus-engine-sim---3*[{ibus-engine-sim}]
| | |-ibus-extension----4*[{ibus-extension-}]
| | `-3*[{ibus-daemon}]
| |-ibus-portal---3*[{ibus-portal}]
| |-ibus-x11---3*[{ibus-x11}]
| |-jackdbus
| |-2*[pipewire---2*[{pipewire}]]
| |-pipewire-pulse---2*[{pipewire-pulse}]
| |-sd_dummy---2*[{sd_dummy}]
| |-sd_espeak-ng---{sd_espeak-ng}
| |-speech-dispatch---4*[{speech-dispatch}]
| |-tracker-miner-f---7*[{tracker-miner-f}]
| |-wireplumber---5*[{wireplumber}]
| |-xdg-desktop-por---6*[{xdg-desktop-por}]
| |-xdg-desktop-por---14*[{xdg-desktop-por}]
| |-xdg-desktop-por---4*[{xdg-desktop-por}]
| |-xdg-document-po-+-fusermount3
| | `-6*[{xdg-document-po}]
| `-xdg-permission----3*[{xdg-permission-}]
|-systemd-hostnam
|-systemd-journal
|-systemd-logind
|-systemd-timesyn---{systemd-timesyn}
|-systemd-udevd
|-udisksd---5*[{udisksd}]
|-unattended-upgr---{unattended-upgr}
|-upowerd---3*[{upowerd}]
`-wpa_supplicant
Explanation
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.
Related Source Code Exposition
static void free_buffers()
{
if (width != NULL) {
free(width);
width = NULL;
}
if (more != NULL) {
free(more);
more = NULL;
}
capacity = 0;
}
static void free_buffers()
{
if (width != NULL) {
free(width);
width = NULL;
}
if (more != NULL) {
free(more);
more = NULL;
}
capacity = 0;
}
Source Code Highlight
Frees any buffers allocated by ensure_buffer_capacity.
Featured Image
Related Knowledge
The fundamental data structure within the kernel controlling all processes is the process structure, which grows and shrinks dynamically as processes are forked and finished or killed.