{"id":13947,"date":"2022-01-18T15:19:56","date_gmt":"2022-01-18T15:19:56","guid":{"rendered":"https:\/\/linuxways.net\/?p=13947"},"modified":"2022-01-18T15:19:56","modified_gmt":"2022-01-18T15:19:56","slug":"listing-services-on-ubuntu-20-04","status":"publish","type":"post","link":"https:\/\/linuxways.net\/de\/ubuntu\/listing-services-on-ubuntu-20-04\/","title":{"rendered":"Listing Services on Ubuntu 20.04"},"content":{"rendered":"

Introduction<\/h2>\n

If you are the system administrator, you can see all the services like process manager, login, syslog, … running in the background on your device.<\/p>\n

These services help with how the system works and connects to other programs. And you can also list all these services on Ubuntu.<\/p>\n

Now we’re gonna teach you to list all services by using the systemctl command on Ubuntu 20.04.<\/p>\n

The syntax of the systemctl command<\/h2>\n

The syntax:<\/strong><\/p>\n

$ systemctl [options] [command]<\/pre>\n
To list all the services, run:<\/p>\n
$ systemctl --no-pager<\/pre>\n
Output:<\/p>\n
<\/p>\n
Listing all unit files<\/h2>\n
Run the following command:<\/p>\n
$ systemctl list-units --all --type=service --no-pager<\/pre>\n
Output:<\/p>\n
<\/p>\n
Listing systemd unit files<\/h2>\n
Run:<\/p>\n
$ systemctl list-unit-files --no-pager<\/pre>\n
Output:<\/p>\n
<\/p>\n
Combining grep command to search for specific unit file<\/h2>\n
The syntax:<\/p>\n
$ systemctl list-unit-files --no-pager | grep service_name<\/pre>\n
For example, I want to search for \u201csession\u201d:<\/p>\n
$ systemctl list-unit-files --no-pager | grep session<\/pre>\n
Output:<\/p>\n
<\/p>\n
Listing systemd service unit files by state<\/h2>\n
We will combine the grep command to do this. For example, I will list systemd service unit files are in the enabled state:<\/p>\n
$ systemctl list-unit-files | grep enabled<\/pre>\n
Output:<\/p>\n
<\/p>\n
For example, I will list systemd service unit files are in the disabled state:<\/p>\n
$ systemctl list-unit-files | grep disabled<\/pre>\n
Output:<\/p>\n
<\/p>\n
Listing services using pstree command<\/h2>\n
$ pstree<\/pre>\n
Output:<\/p>\n
<\/p>\n
List the groups that use the most resources<\/h2>\n
Run the following command:<\/p>\n
$ systemd-cgtop<\/pre>\n
Output:<\/p>\n
<\/p>\n
Conclusion<\/h2>\n
We just taught you to list all services by using the systemctl command on Ubuntu 20.04.<\/p>\n
Thank you for referring!<\/p>","protected":false},"excerpt":{"rendered":"
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