The terminal is the fear of many and, why not, the excuse they try to use to run Linux. Linux is not just a terminal, as many believe, but much more. Maybe many did not know this, but an equivalent of the terminal also exists on iOS or Windows. Of course, this does not prevent anyone from using these operating systems and there are no criticisms of them on this subject.
Ubuntu and its derivatives can be extremely easily controlled with the help of the terminal. In its youth, Linux required only terminal work, and old Linux users and newcomers love it. Besides being easy and interesting, it's also fun.
We have prepared below a small collection of 11 useful commands with which you can do some basic things. Working through the terminal does not involve copy paste but writing the order, if you want to have the satisfaction of your work.
Although I think it is already known, many of the commands will require you to enter the root password. When you write it, the field in the terminal, for security reasons, will not display any characters. It is also possible that the terminal, in order to finish its work, may ask you to communicate more with it, ie to agree or not to agree with certain changes. With a little attention and courage, you will succeed.
Update the local package list. The operating system updates its database.
sudo apt-get update
Install the latest available versions of existing software packages on your computer. No new packages will be installed or removed to address the dependencies they need.
sudo apt-get upgrade
Install a new version of the operating system when it is available, and solve the necessary dependencies.
sudo apt-get dist-upgrade
allows the installation of a new application
sudo apt-get install + application name
Example of installing VLC Player
sudo apt-get install vlc
uninstalling an application / package
sudo apt-get remove + application name
Example of uninstalling an application
sudo apt-get remove vlc
view all open processes
ps - aux
starts from the terminal, as root, a certain application
sudo + application name
Example of application started as root
Example of application started from the terminal
restart the operating system
turn off the operating system
program the operating system to shut down after a certain time
sudo shutdown -h (time) (message)
Example of scheduled shutdown of the operating system
sudo shutdown -h 19:04 "The system shuts down"