Linux service management with systemd

Mayowa Fajube answered on September 24, 2024 Popularity 1/10 Helpfulness 1/10

answer Linux service management with systemd

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Linux service management with systemd

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# SYSTEMCTL
systemctl start project-file.service
systemctl status project-file.service
systemctl stop project-file.service
systemctl restart project-file
systemctl reload project-file
systemctl enable project-file
systemctl disable project-file
systemctl daemon-reload
systemctl edit project-file.service --full #this edit directly without having to run `daemon-reload`
systemctl get-default
systemctl set-default multi-user.target
systemctl list-units --all


#JOURNALCTL

journalctl # shows all the service logs entry from the oldest entry to the newest entry
journalctl -b # to show the newest enry
journal -u UnitName #(e.g docker.service)


# Creating systemd service
# Save the file in `/etc/systemd/system/project-file.service`

[Unit]
Description=Python Django for Project Mercury
Documentation=
After=postgres.service

[Service]
ExecStart=/bin/bash /usr/bin/project-file.sh
User=project-username
Restart=on-failure
RestartSec=10	

[Install]
WantedBy graphical.target

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Source: Grepper

Tags: linux service-management shell systemd

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Contributed on Sep 24 2024

Mayowa Fajube

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	// Interface definition
	interface Vehicle {
	    void startEngine();
	}
	
	// Class that implements the interface
	class Car implements Vehicle {
	    public void startEngine() {
	        System.out.println("Car engine started.");
	    }
	}
	
	// Usage of the interface
	public class Main {
	    public static void main(String[] args) {
	        Vehicle myCar = new Car();  // Using the interface type
	        myCar.startEngine();        // Calling the method
	    }
}

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Tags: java interface-implementation

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Contributed on Sep 24 2024

Real Reindeer

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Linux service management with systemd

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