.bashrc Definition A shell script file in your home directory that is executed when you open the terminal (when Bash starts).
Print Definition Multiple meanings: to print a text or image to paper, to print the output of terminal commands on a terminal window, or to screenshot, to capture the image of the screen.
Environment Variable (in the Command-Line) Definition A piece of text that a program has access to that is set by the operating system or by the program that started it to describe the context in which the program is currently running in that is passed down from program to program by default.
Current Working Directory (in the Terminal) Definition Which folder (directory) you're currently working in while using the terminal.
What Values can the Zeroth Argument Have? (in the Command-Line) Reference Too many: absolute filepath, program name, path relative to current working directory, filename of the script, "bash", or literally anything at all.
Zeroth Argument (in the Command-Line) Definition The name of the terminal command you type in the command-line, which may be the filepath of a program or a built-in shell utility that you want to execute.
Is The "Command Line" The Entire Last Line of the Terminal Including the Shell Prompt or Not? Reference The last line of the terminal consists of the shell prompt—which may look like this: John@Mint:~$ —and, after the prompt, a space where you can type the terminal commands that will be interpreted. Is the entire thing the command line, or not?
Shell Prompt Definition The text that appears on the command line before the area where you can type terminal commands, for example John@Mint:~$.
Shell Definition A program or application that allows a user or other programs to access the core functions of an operating system contained in a subsystem called the "kernel" of the operating system.
Command Line Definition Line where a user can type text commands in an application that will be interpreted by some program.
Flag (in a Terminal Command) Definition An optional parameter that begins with only one dash (-) and has only one letter, e.g. "-a", "-b", etc.