Why Linux

More computers run a Linux OS's than all other computers combined!

So get use to it!

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Create a User

You should NOT be doing coding as the "root" user on a system.  Each user should have their own account:

• adduser --shell /bin/bash --allow-bad-names -comment "First Last" first.last

  • you might need to give "sudo" permission to a user, so they can load software

• usermod -aG sudo first.last

Sudo

Sudo stands for SuperUser DO and is used to access restricted files and operations. By default, Linux restricts access to certain parts of the system preventing sensitive files from being compromised.  The sudo command temporarily elevates privileges allowing users to complete sensitive tasks without logging in as the root user :

• apt-get update

  • you will get a (13: Permission denied) error, if you are not a root user

• sudo apt-get update

  • will work

Update and Upgrade

To keep your system up to date :

• sudo apt-get update && sudo apt-get full-upgrade

Shutdown and Reboot

To manage your servers :

• sudo shutdown now

• sudo reboot now