Command Line Crash Course
Title Text
What's a Terminal?
a contact on an electrical device (such as a battery) at which electric current enters or leaves
electronic equipment consisting of a device providing access to a computer; has a keyboard and display
What's a Terminal?
So What's a Shell?
In computing, a shell is a user interface for access to an operating system's services.
In general, operating system shells use either a command-line interface (CLI) or graphical user interface (GUI), depending on a computer's role and particular operation.
It is named a shell because it is the outermost layer around the operating system.
So What's a Shell?
Powershell, Bash, ZSH, the MINGW git shell for Windows, and the Win32 shell you use when you open CMD.exe in windows are all shells you might have encountered.
Great wiki about different shells:
en.wikipedia.org/wiki/Comparison_of_command_shells
We're going to be focusing mostly on Bash and ZSH
Words
Terminal
Shell
Prompt
Command
Flag
Path
Permissions
Dotfiles
Prompt Statement (PS1, PS2)
CLI
Conquer The Command Line
By gpspake
