Ubuntu_ using the shell

The shell is a command interpreter that provides interaction between the user and the operating system for a non-interactive interface that is oriented to the command line. The user enters commands at the command line, the shell interprets them, and then sends it as an instruction to the operating system.

Several different Shell:bourne Again shell (BASH), Korn shell, TCSH shell, and z shells have been developed for Linux. TCSH is an enhanced version of the C shell, and C shell is used in many UNIX systems, especially BSD versions. For the user's operation, only one type of shell is required. All of the main shells are already included in Linux, but the bash shell is installed by default. If you use the command-line shell, you are using the bash shell unless you specify a different one. Ps:man Bash will access the online manual of the bash shell.

1. Accessing the shell

Multiple methods. From the desktop, you can access it using GNOME or KDE's terminal window. You can run the shell script, which executes the shell command, and you can boot the system directly to the command line interface and start in the shell command.

In GNOME and KDE, Access-appliacation through a terminal window | Accessories | Terminal.

2. Command line

Ubuntu_ using the shell