Commands

2. is a command line text editor. It works just like a desktop text editor like TextEdit or Notepad, except that it is accessible from the command line and only accepts keyboard input.
5. takes in a directory name as an argument, and then creates a new directory in the current working directory. Here we used mkdir to create a new directory named media/.
7. takes a directory name as an argument, and switches into that directory.
8. makes the variable to be available to all child sessions initiated from the session you are in. This is a way to make the variable persist across programs.
9. lists all files and directories in the working directory

1. variable is an environment variable that displays the path of the home directory.
3. command allows you to create keyboard shortcuts, or aliases, for commonly used commands.
4. selects all of the files in the current directory. The above example will copy all of the files in the current directory to the directory called satire. There are other types of wildcards, too, which are beyond the scope of this glossary.
6. stands for “global regular expression print”. It searches files for lines that match a pattern and returns the results. It is case sensitive.
8. command stands for “environment”, and returns a list of the environment variables for the current user.