December 2018
Beginner
826 pages
22h 54m
English
Content preview from Linux Administration Cookbook
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Quick sudo explanation
In the various commands that were given in the preceding recipe, we used sudo repeatedly. This was so that we didn't have to log in as the root user to perform various restricted actions.
sudo is a contraction of 'superuser do' because sudo used to be used for running commands as the "superuser" only, nowadays you can use it to run commands as various users.
Generally, if you attempt to run a command that you lack permissions to complete successfully, you'll be greeted with an error:
$ less /etc/sudoers /etc/sudoers: Permission denied
Here, I tried to have a look at the /etc/sudoers file, which also happens to be the file that determines a user's sudo privileges.
Running this command with sudo is a different story. ...
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