What is sudo in Linux and why is it so important?
Briefly

The root user in Linux had unlimited power over the system, posing significant security risks if accessed by unauthorized individuals. This access could allow hackers to wreak havoc on the machine.
Sudo, born out of the need to address security concerns, grants regular users belonging to the admin group limited superuser powers. This shift improved system security and control over administrative tasks.
Read at ZDNET
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