systemctl.txt

how detect system ?
    /usr/lib/systemd tells you you're on a systemd based system.
    /usr/share/upstart is a pretty good indicator that you're on an Upstart-based system.
    /etc/init.d tells you the box has SysV init in its history 
----- OR
 strings /sbin/init | grep -q "/lib/systemd" && echo SYSTEMD
 strings /sbin/init | grep -q "sysvinit" && echo SYSVINIT
 strings /sbin/init | grep -q "upstart" && echo UPSTART
----- OR 
 sudo stat /proc/1/exe
----------------------------- Systemctl to Manage Systemd Services and Units 
systemd 
لیست کردن همه واحد ها units شامل (mounts, service, jobs)
systemctl list-units
شروع کردن سرویس
systemctl start [NAME...] 
استپ سرویس
systemctl stop [NAME...] 
فعال کردن سرویس 
systemctl enable [NAME...] 
غیر فعال کردن سرویس
systemctl disable [NAME...] 
نمایش وضعیت سرویس 
systemctl status apache2.service

sudo systemctl restart application.service
sudo systemctl reload application.service
* نمایش وابستگی های سرویس 
systemctl list-dependencies $service
systemctl list-dependencies apache2
------
لیست کردن همه سرویس ها 
systemctl -t service
systemctl list-units --type=service
لیست کردن همه سرویس های فعال
systemctl -t service -a
نمایش همه 
systemctl -a
systemctl 
-------------
فعال کردن و غیر فعال کرده هنگام بوت 
sudo systemctl enable application.service
sudo systemctl disable application.service
بررسی کردن وضعیت هنگام بوت
systemctl is-enabled application.service
systemctl is-enabled apache2.service
-------------
نمایش همه واحد های فعال
systemctl list-units --all --state=running

systemctl -t service --state=running
---------------------
sudo systemctl poweroff
sudo systemctl reboot
--------------------
دستورات کاربردی برای من 
	sudo systemctl disable mysql.service 
	sudo systemctl disable sshd.service 
	sudo systemctl disable ssh.service
	sudo systemctl disable tor
	sudo systemctl disable bluetooth.service
	sudo systemctl disable openvpn.service