sudo Command in Linux with Examples

The sudo command allows users to run programs with superuser privileges. It’s used to execute commands requiring administrative access.

Syntax:

Examples:

1. Update System Packages
   bash

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   sudo apt update

2. Edit a System File
   bash

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   sudo nano /etc/hosts

3. Change Ownership of a File
   bash

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   sudo chown user:group filename

4. Restart a Service
   bash

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   sudo systemctl restart apache2

5. Run a Script as Superuser
   bash

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   sudo ./script.sh


Key Notes:

• Use sudo with caution to avoid system changes.
• It asks for a password to verify privileges.
• Use sudo -i for a persistent superuser session.