That's an excellent question!
You use sudo because apt update (and apt install) are actions that modify the system-wide package database and install software that affects all users on the system.
Here's a breakdown:
sudostands for "SuperUser Do".- It temporarily grants you administrator (or root) privileges for the command you are running.
- In Linux, most regular user accounts have limited permissions to prevent accidental or malicious changes to critical system files.
- To perform tasks that require access to these critical areas (like updating package lists or installing new software), you need to elevate your privileges, and
sudois the command that allows you to do that.
Think of it like needing an administrator password to install an application on Windows or macOS. sudo provides that temporary "administrator access" in the Linux command line.
Great job noticing and asking about sudo! Do you want to proceed with the next command to install htop?