Starts systemd service and follow log
I can start services with systemctl start. I can see logs with systemctl status or journalctl. But by the time I run the second the process has already started. I'd like to start a service and immediately be dropped into the live log from it, similar to docker run for example. How can I do this?
Currently I open two terminal windows, and run journalctl continuously in one.
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Assuming that systemctl start $SERVICE.service returns right away (some [poorly] written StartExec commands do not), you can run this:
systemctl start $SERVICE.service & journalctl -f -u $SERVICE.service
This is the command I run quite often when needing to investigate the startup logs.
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You can use the --follow option of systemctl to start a service and immediately tail the log file.
Here's an example command that starts the myservice service and follows the log:
sudo systemctl start-follow myservice
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