Ubuntu

User

delete user

sudo deluser --remove-home user1

list users

cat /etc/passwd

Static IP

sudo nano /etc/netplan/00-installer-config.yaml

network:
  ethernets:
    enp0s3: # network card name
      addresses:
      - 192.168.2.22/24 # set static ip
      nameservers:
        addresses: [192.168.2.1] # dns
      routes:
      - to: default
        via: 192.168.2.1 # geteway
  version: 2

sudo netplan apply