Explore Fun Linux Commands: rev, asciiview, sl, aafire, and More

rev command

Reverses each line of the input string.

$ rev

shiyanlou

asciiview command

Install and use asciiview to display images as ASCII art.

$ sudo apt-get install aview

$ sudo apt-get install imagemagick

$ asciiview shiyanlou.png -driver curses

Result:

sl command

Shows a train animation moving across the screen.

$ sudo apt-get install sl

$ sl

aafire command

Displays a fire animation in the terminal.

$ sudo apt-get install libaa-bin

$ aafire

cmatrix command

Creates a "Matrix" style falling characters animation.

$ sudo apt-get install cmatrix

$ cmatrix

Press Ctrl+C to stop.

factor command

Factorizes numbers, useful for helping elementary students with math problems.

$ factor 60

oneko command

Shows a cat that follows the mouse pointer; it sleeps when the mouse stops.

$ sudo apt-get install oneko

$ oneko

Press Ctrl+C to exit.

boxes command

Wraps input text or code with various ASCII art borders.

$ sudo apt-get install boxes

$ echo "shiyanlou.com" | boxes

Or use a different style:

$ echo "shiyanlou.com" | boxes -d dog

xeyes command

Displays a pair of animated eyes that follow the mouse cursor.

$ sudo apt-get install xeyes

$ xeyes

pv command

Simulates a typewriter effect by displaying text at a controlled rate.

$ sudo apt-get install pv

$ echo "welcome to shiyanlou.com , you can learn IT by doing" | pv -qL 10