systemctl:tldr:269b1

The "systemctl daemon-reload" command is used to reload the systemd configuration files.

Systemd is a system and service manager for Linux operating systems. It manages the system startup process, controls services and daemons, and provides various other system management functionalities.

When you make changes to the systemd unit files, such as creating or modifying service files, you need to notify systemd to reload its configuration files so that it can reflect the changes. This is where the "systemctl daemon-reload" command comes into play.

By running this command, you are instructing systemd to reload its configuration files from the disk, incorporating any changes made since the last reload. It updates its internal data structures, verifies syntax, and prepares for executing the modified or newly created units properly.

After reloading the daemon, you can then start, stop, or manage the services based on the updated configurations using systemctl commands like "systemctl start [service]", "systemctl stop [service]", and so on.

In summary, "systemctl daemon-reload" is used to reload the systemd configuration files, enabling systemd to recognize any changes made to the unit files.