101.3 Change Runlevels/Boot Targets and Shutdown or Reboot the System (systemd, sysvinit and upstart) Flashcards
1
Q
sysvinit
displays the current runlevel and previous if available
A
runlevel
2
Q
sysvinit
can be run to change the system runlevel
A
init
3
Q
sysvinit
same as init command though is legacy and not typically used any longer
A
telinit
4
Q
sysvinit
the default target is changed in the
A
/etc/inittab file
5
Q
sysvinit
reboot the system
A
reboot
6
Q
sysvinit
will reboot or halt the system
A
shutdown
7
Q
systemd
halt, do not power off
A
systemctl halt
8
Q
systemd
halt and powr off if ACPI available
A
systemctl poweroff
9
Q
systemd
halt and reboot
A
systemctl reboot
10
Q
upstart
supports
A
sysvinit methods
11
Q
upstart
does not support
A
systemd methods
12
Q
wall
broadcast message to all logged in users and limited 20 lines of text
A
wall
13
Q
wall
message will display on every terminal often
A
overwriting or interrupting termial text
