Command Line (bash)

• Console = system as a whole; both the command line & output from previous commands
• Command Line = actual line in a console where you type your command
• Prompt = beginning of the command line; usually provides some contextual info like who you are, where you are, etc.; typically ends in a $
• Terminal = actual interface to the console; the program we use is actually a terminal emulator that provides us with the experience of typing into an old school terminal from the convenience of a modern GUI
• $ ls -l ~ = program, options, arguments
  • The program is the verb; it describes what you want to do
  • Options are like the adverb; they usually modify the way the program will run
  • Arguments are the objects; they describe what we want our command to act on
• l = long, will display filenames + detailed info
• ~ = home directory/folder
• ls = list
• pwd = print working directory
• ... = up one directory
• cd = change directory
• man = manual (i.e., $ man ls)
• q = quit
• mkdir = make a new directory
• touch = make a new empty file
• cp = copy a file
• mv = move a file
• rm = remove a file or directory
• less = show the contents of a file in a scrolling buffer
• so = authenticate yourself a superuser to gain extra security privileges