2.0 Linux
The command line and the superuser
The best way to fail big is to run blind applications without understanding them, avoid running commands as root, and avoid running commands you don’t understand.
Warning
Don’t use the root account!!! If anyone asks you to run script as root, or give access as root, be very suspicious of their intentions.
Understanding what are you running?
If you don’t understand what a command does, check the manual page first or help page.
# read manual
man <command>
# check help
<command> --help
Note
When you don’t know what do to, google the problem, if you don’t know what to search, read the documentation :).
Why are we using Linux?
Reasons why Linux is used in the industry:
It’s free
It’s open source
It’s stable
It’s secure
It’s flexible
It’s customizable
It’s efficient
It’s scalable
It’s reliable
It’s fast
It’s easy to upgrade