Be familiar with the following topics for the midterm:

Text Editors
    
    For your editor of choice, know the keystrokes to:
    
        - exit without saving
        - save without exiting
        - save and exit
        - search in the file

Terminal basics
    
    - Understand the bash prompt and what each piece of information means
    - Simple file navigation (cd, ls, pwd, mkdir, mv, cp, cat, etc)
    - Know the meaning of ~, ., and ..
    - The importance of capitalization

Common Command Options

    - ls and its -a and -l options
    - cp and its -r option
    - wc and its -c, -w, and -l options
    - rm and its -r and -f options
    - bash and its -e and -x options

Variables
    
    - The different ways to set and see the contents of shell variables
    - The difference between 'single' and "double" quotes
    - Curly braces in variables
    - What happens when you try to echo an unset variable

Wildcards
    
    - *, ?, and the many ways to use []
    - What happens when a wildcard finds no matches
    - Be able to tell what a specific wildcard will match given the files/directories in the current working directory

Basic Bash scripting
    
    - Command line arguments
    - Be able to describe what a simple script does
    - Be able to write a simple script

While-loops
    
    - How they are structured
    - How the conditional in the loop works

I/O Manipulation/Redirection
    
    - Using the echo command
    - <, >, >>, 2>, 2>>, and |

Misc

    - Exit status
        - What it means
        - How to view it
        - How it relates to loops
    - Control signals (Ctrl-C, Ctrl-D, Ctrl-L, Ctrl-Z, Ctrl-R)