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Notes

Linux Basic Guides

Setup sudo

  • Switch to root

    Terminal window
    su -

  • Install sudo

    Terminal window
      apt install sudo

  • Add your user to the sudo group

    Terminal window
      usermod -aG sudo <username>

Mount External USB Drive

  • Get your external USB drive information UUID

    Terminal window
      lsblk -f

  • Add your external drive to /etc/fstab to mount it on boot

    Terminal window
     nano /etc/fstab

    Then add your drive like so:
    UUID=<UUID> <mount path> auto uid=1000,gid=1000,nosuid,nodev,nofail 0 0

  • Reboot

Setup Samba

  • Install samba

    Terminal window
      apt install samba

  • Open /etc/samba/smb.conf

    Terminal window
      sudo nano /etc/samba/smb.conf

  • Add a Share Definition then save and exit

    smb.conf
    [shareName]
    comment = hello
    path = /media/samba/share
    browseable = yes
    writable = yes
    guest ok = yes
    read only = no
    users = <user>, <user>

  • Add a Samba user

    Terminal window
      smbpasswd -a <username>

  • Restart samba

    Terminal window
      sudo service smbd restart

  • Access the Share at //<your ip>/shareName

Create a systemd service

  • Create a systemd service

    Terminal window
      nano /etc/systemd/system/<serviceName>.service

  • Edit the service with your desired settings

    <seriveName>.service
      [Unit]
      Description=<description>
    

      [Service]
      ExecStart=<path to executable>
      WorkingDirectory=<working directory path>
      Restart=always
      RestartSec=50s
      User=<username>
      After=<service name>
      Requires=<service name>

  • Reload daemon

    Terminal window
      sudo systemctl daemon-reload

  • Enable and start the service

    Terminal window
      sudo systemctl enable <serviceName>
      sudo systemctl start <serviceName>

  • Check service status

    Terminal window
      sudo systemctl status <serviceName>

  • Stop the service

    Terminal window
      sudo systemctl stop <serviceName>

  • List all services

    Terminal window
      systemctl list-unit-files --type=service

Auto screen off

  • Open the GRUB configuration file

    Terminal window
    sudo nano /etc/default/grub

  • Edit the line that starts with GRUB_CMDLINE_LINUX_DEFAULT and add consoleblank=<seconds>

    grub
    GRUB_CMDLINE_LINUX_DEFAULT="quiet consoleblank=60"

  • Update GRUB

    Terminal window
    sudo update-grub

  • Reboot

Download and Install a Debian package

  • Download the package

    Terminal window
      wget <url>

  • Install the package

    Terminal window
      sudo dpkg -i <filename>

  • Remove the file you downloaded

    Terminal window
      rm <filename>