What is the Linux Shell?
The Linux shell is a command-line interface used to interact with the operating system. It allows users to execute commands and scripts to perform various tasks. When commands are entered in the shell, they are executed immediately and the output is displayed on the terminal. When a user logs in to a Linux system, the shell starts automatically. The default shell for most Linux distributions is Bash (Bourne Again Shell), but other shells like Zsh and Fish are also available.Logging In to the Linux Shell
To log in to a Linux shell, you can use a terminal emulator or SSH (Secure Shell) to connect to a remote Linux system./home/username. For example, if your username is john, your home directory will be /home/john.
This home directory is your own personal workspace, used to store files, configurations, and settings specific to your user account.
What is ~?
You can use the
pwd command to print the current working directory and confirm where you are in the filesystem.~ represents the home directory of the currently logged-in user. For example, if your username is john, then ~ refers to /home/john.
This shorthand is supported across most Linux commands and makes navigating back to your home directory quick and easy.