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CheatSheet: New Systemd Cheatsheet (#4024)
* new systemd cheatsheet * small description change and some editing to avoid duplication * adds aliases * fixes the typo * small nit fix
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| { | ||
| "id": "systemd_cheat_sheet", | ||
| "name": "Systemd", | ||
| "description": "Mantains the system or user services", | ||
| "metadata": { | ||
| "sourceName": "Cheatography", | ||
| "sourceUrl": "https://www.cheatography.com/tme520/cheat-sheets/systemd/" | ||
| }, | ||
| "aliases": [ | ||
| "systemctl", | ||
| "system services", | ||
| "system service", | ||
| "system manager" | ||
| ], | ||
| "template_type": "terminal", | ||
| "section_order": [ | ||
| "Services Management", | ||
| "Investigate and Logs", | ||
| "System State" | ||
| ], | ||
| "sections": { | ||
| "Services Management": [ | ||
| { | ||
| "key": "systemctl start <SERVICE>", | ||
| "val": "Start a SERVICE (not reboot persistent) Ex: systemctl start httpd.service" | ||
| }, | ||
| { | ||
| "key": "systemctl stop <SERVICE>", | ||
| "val": "Stop a SERVICE (not reboot persistent) Ex: systemctl stop httpd.service" | ||
| }, | ||
| { | ||
| "key": "systemctl restart <SERVICE>", | ||
| "val": "Restart a SERVICE Ex: systemctl restart httpd.service" | ||
| }, | ||
| { | ||
| "key": "systemctl reload <SERVICE>", | ||
| "val": "Reloads the configuration files without interrupting pending operations Ex: systemctl reload httpd.service" | ||
| }, | ||
| { | ||
| "key": "systemctl condrestart <SERVICE>", | ||
| "val": "Restarts if the SERVICE is already running Ex: systemctl condrestart httpd.service" | ||
| }, | ||
| { | ||
| "key": "systemctl status <SERVICE>", | ||
| "val": "Shows the status of a SERVICE Ex: systemctl status httpd.service" | ||
| }, | ||
| { | ||
| "key": "systemctl list-units --type=service", | ||
| "val": "Displays the status of all services" | ||
| }, | ||
| { | ||
| "key": "systemctl list-unit-files --type=service", | ||
| "val": "List the services that can be started or stopped" | ||
| }, | ||
| { | ||
| "key": "ls /etc/systemd/system/*.wants/", | ||
| "val": "Print a list of services (alternative)" | ||
| }, | ||
| { | ||
| "key": "systemctl enable <SERVICE>", | ||
| "val": "Start SERVICE at next boot Ex: systemctl enable httpd.service" | ||
| }, | ||
| { | ||
| "key": "systemctl disable <SERVICE>", | ||
| "val": "SERVICE won't be started on next boot Ex: systemctl disable httpd.service" | ||
| }, | ||
| { | ||
| "key": "systemctl is-enabled <SERVICE>", | ||
| "val": "Check if a SERVICE is configured to start in the current environment Ex: systemctl is-enabled httpd.service" | ||
| }, | ||
| { | ||
| "key": "systemctl daemon-reload", | ||
| "val": "Run this command after a change in any configuration file (old or new)" | ||
| }, | ||
| { | ||
| "key": "systemctl -H <HOST> status network", | ||
| "val": "Run any systemctl command remotely" | ||
| } | ||
| ], | ||
| "Investigate and Logs": [ | ||
| { | ||
| "key": "systemctl get-default", | ||
| "val": "Determine which target unit is used by default." | ||
| }, | ||
| { | ||
| "key": "systemctl set-default multi-user.target", | ||
| "val": "Change default boot target to multi-user.target" | ||
| }, | ||
| { | ||
| "key": "journalctl -b", | ||
| "val": "Show all messages from last boot" | ||
| }, | ||
| { | ||
| "key": "journalctl -b -p err", | ||
| "val": "Show all messages of priority level ERROR and more from last boot" | ||
| }, | ||
| { | ||
| "key": "journalctl -f", | ||
| "val": "Follow messages as they appear" | ||
| }, | ||
| { | ||
| "key": "journalctl -k", | ||
| "val": "Show only kernal messages" | ||
| }, | ||
| { | ||
| "key": "journalctl -u <SERVICE>", | ||
| "val": "Show logs for SERVICE" | ||
| }, | ||
| { | ||
| "key": "journalctl --full", | ||
| "val": "Display all messages without truncating any" | ||
| }, | ||
| { | ||
| "key": "systemctl --state=failed", | ||
| "val": "Display the services that failed to start" | ||
| }, | ||
| { | ||
| "key": "systemctl list-units --type=target", | ||
| "val": "Show current runlevel" | ||
| }, | ||
| { | ||
| "key": "systemctl isolate graphical.target", | ||
| "val": "Change the current runlevel (target)" | ||
| }, | ||
| { | ||
| "key": "systemctl emergency", | ||
| "val": "Switch to Emergency mode (single user)" | ||
| }, | ||
| { | ||
| "key": "systemctl kill <SERVICE>", | ||
| "val": "Gently kill SERVICE (SIGTERM, 15)" | ||
| }, | ||
| { | ||
| "key": "systemd-cgls", | ||
| "val": "Show the full systemd control group (cgroup) hierarchy as a tree" | ||
| }, | ||
| { | ||
| "key": "systemctl list-jobs", | ||
| "val": "Show jobs" | ||
| }, | ||
| { | ||
| "key": "systemctl list-dependencies", | ||
| "val": "Show units and its dependencies" | ||
| } | ||
| ], | ||
| "System State": [ | ||
| { | ||
| "key": "systemctl halt", | ||
| "val": "Halts the system" | ||
| }, | ||
| { | ||
| "key": "systemctl poweroff", | ||
| "val": "Powers off the system" | ||
| }, | ||
| { | ||
| "key": "systemctl reboot", | ||
| "val": "Restarts the system" | ||
| }, | ||
| { | ||
| "key": "systemctl suspend", | ||
| "val": "Suspends the system" | ||
| }, | ||
| { | ||
| "key": "systemctl hibernate", | ||
| "val": "Hibernates the system" | ||
| }, | ||
| { | ||
| "key": "systemctl hybrid-sleep", | ||
| "val": "Hibernates and suspend the system" | ||
| } | ||
| ] | ||
| } | ||
| } |