Bash Terminal
A terminal is the window where you type commands and read what they print.
The terminal shows the text, and the shell inside it runs the commands. Press Enter to run a command, the Up arrow to get the last one back, and Tab to complete a file name.
Run a command in the terminal
echo "Hello, Bash!"
Hello, Bash!
Clear the screen
The clear command empties the terminal window. It prints nothing itself:
clear