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Day 3

Linux Basics II (User Management, Permissions, Package Management)​

User Management in Linux:​

  1. Add a User: 
    sudo adduser username
  2. Switch User: 
    su - username
  3. Delete a User: 
    sudo userdel username

File Permissions:​

  • Format: rwx (Read, Write, Execute)
  • View permissions: 
    ls -l
  • Change permissions: 
    chmod 755 filename
  • Change ownership: 
    sudo chown user:group filename

Package Management:​

  1. APT (Debian-based Systems):
    • Update package list: 
      sudo apt update
    • Install a package: 
      sudo apt install packagename
  2. YUM/DNF (RHEL-based Systems):
    • Install a package: 
      sudo yum install packagename

Learning Outcomes for Week 1​

  • ✅ A fully functional lab environment using VirtualBox and Kali Linux.
  • ✅ A solid foundation in Linux navigation and basic commands.
  • ✅ An understanding of user management, permissions, and package management.