Unix Command Line

INFO

Provided a command line interface(Shell) for users to interact with the system, which runs in a terminal window

The Shell

• bash and zsh are some examples
• displays a shell prompt → always starts with a $ sign
• User types command that the shell program executes
• Shell operates similarly to REPL
• Used to run programs, navigate file system, and manipulate files
  • Unix File System

$ whoami # returns the username
myusername

REPL

Stands for read-eval-print loop

1. Reads the commands entered by the user
2. Evaluate the command
3. Performs the requested action or Prints out the result
4. Return to the shell prompt