Miscellaneous

Command	Description	Example
echo [text]	Display a line of text.	echo "Hello, World!" → Prints Hello, World! to the terminal.
clear	Clear the terminal screen.	clear → Clears the terminal screen.
date	Display or set the system date and time.	date → Displays the current date and time.
cal	Display a calendar.	cal → Displays the current month's calendar.
history	Show the command history.	history → Lists the previously used commands.
man [command]	Display the manual page for a command.	man ls → Shows the manual for the ls command.
alias [name]='[command]'	Create a shortcut for a command.	alias ll='ls -l' → Creates an alias ll for ls -l.
unalias [name]	Remove an alias.	unalias ll → Removes the alias ll.
sleep [time]	Pause for a specified amount of time.	sleep 5 → Pauses the terminal for 5 seconds.