Systemctl
How to verify a systemd unit for errors?
Learn how to troubleshoot issues with systemd units by verifying the unit files for any errors. One of the tools to help is systemd-analyze.
Why does systemctl list-units show units as 'not-found'?
Troubleshoot issues like units being marked as 'not-found' in the output of systemctl list-units. This articles help with the steps to take.
How to see active systemd timers
Systemd timers are scheduled tasks for Linux systems. Show timer information with the systemctl command such as status, last execution, and its schedule.
How to see all enabled services with systemctl
Linux systems using systemd have the systemctl command available that can be used to show all service units, including a filter for only those that are enabled.
What does systemctl daemon-reload do?
When making changes to systemd unit files, you may need to use systemctl daemon-reload. This article explains why and what happens next.
How to check if 'systemctl daemon-reload' is needed
When systemd units are changed, a 'systemctl daemon-reload' might be needed. Need to know why? We can find the relevant units with some scripting.
What is the difference between systemctl disable and systemctl mask?
Want to disable a systemd service unit, but wondering the difference between systemctl disable and systemctl mask? This article explains the differences.
How to use systemctl edit to change a service?
Systemd allows customizing services with overrides. Learn how to edit an existing systemd service unit with the systemctl edit command.
How to see only running services with systemctl
Linux systems using systems may use the systemctl command to query services. Use a filter to reduce its output and only show all running services.
How to disable the background color of run0
The background color of run0, part of systemd, can be changed with the '--background' option. This way another color can be configured instead of its default.
How to see memory usage of a service with systemctl?
The systemctl command can be used to show the memory usage of a service managed by systemd. Use the subcommand 'status' to find the details about a unit.
How to see the active settings of a systemd unit
Linux systems using systemd can use the systemctl command to show the all applied unit settings. This can be used on units like a service.
How to override the settings of a systemd unit
Systemd units have their own configuration file. The systemctl 'edit' command can be used to override settings of a systemd unit, including services.
How to see the dependencies of a systemd unit
The systemctl command has the list-dependencies option to show dependencies between units. But there are more options to query a little bit more information.
How to see the available systemd unit types
The systemctl command can be used to show all available systemd unit types. Here is how to find the available types and to select them.
How to see all active systemd units of one type
Linux systems using systemd have the systemctl command available to show all active systemd units of one particular type using the '--type' option.
What is a systemd unit?
Systemd units define resources, such as a service, path, socket, or timer. They are usually managed with the systemctl command.
How to reload the systemd configuration
When changes are made to systemd unit files, such as service files, the systemd daemon needs to be reloaded. Use the daemon-reload subcommand to reload.
What is systemd?
Systemd is a system and service manager on Linux distributions to start, stop, and monitor system services. Learn about systemd is and the main components.
What is a masked systemd unit?
Systemd units that are in a masked state are administratively disabled. While being in this state, they can not be started until they are unmasked.
How to see all masked units with systemctl
Want to find all masked unit files on a Linux system running systemd? In this article we show how to do this with systemctl and query those units.
How to disable a systemd unit with systemctl
Want to disable a service or specific systemd unit? Use the systemctl command to configure units and disable it on boot or completely.
How to start and enable a unit with systemctl
Systemd can start and enable a unit, such as a service at the same time. Learn how to use systemctl more efficiently to achieve this this action.
How to show failed units with systemctl
Want to check the system for failed systemd units? In this article we show how to do this with systemctl and query the units with a failure state.
Systemctl cheat sheet
Learn how to get every piece of information from systemd units, such as services and timers, including its configuration and status.