Some interesting Linux commands

Some interesting Linux commands 1.cal 9 1752 [plain] 1752 1 2 14 15 16 17 19 20 21 22 24 25 26 27 28 29 30 30 February 1582, the Holy See needs to subtract 10 days from January 1, October 1582. Therefore, 15 days will be followed after January 1, October 4, 1852. This is done in Italy, Spain, and other countries. The rest of the Catholic countries soon followed, but the new countries were reluctant to modify, and Orthodox countries such as Greece were not modified until the beginning of the 20th century, so the reform was in Britain and its colonies (including the United States) it was executed only on January 1, September 1752. In this way, September 2, 1752 is followed by September 14, 1752. This is why cal generates the above output. 2. aptitude-v moo [plain] <strong> $ aptitude-v moo </strong> There really are no Easter Eggs in this program. <strong> $ aptitude-vv moo </strong> Didn't I already tell you that there are no Easter Eggs in this program? <Strong> $ aptitude-vvv moo </strong> Stop it! <Strong> $ aptitude-vvvv moo </strong> Okay, okay, if I give you an Easter Egg, will you go away? <Strong> $ aptitude-vvvvv moo </strong> All right, you win. /---- \ -------/\/| -------------------/-------- \ ---------------------------------------------- <strong> $ aptitude-vvvvvv moo </strong> What is it? It's an elephant being eaten by a snake, of course. 3. apt-get moo [plain] (_) (oo)/------ \ // | */\---/\~~ ~~... "Have you mooed today? "... 4. cowsay what the before executing this command, you must first install cowsay and run sudo apt-get install cowsay to install it. [Plain] __________ lt; what the> ---------- \^__^ \ (oo) \ _______ (_) \/\ | ---- w | 5. telnet towel. blinkenlights. what is nl? Star Wars? Yes, it's the Star Wars movie. Are you interested in watching it together? Haha. If telnet is not installed, You can first install it through apt-get instal telnet, and then enter the above command to enjoy such a good movie. 6. If fortune does not have this command, you can first install one with apt-get install fortune. Lack of motivation? Give me a famous saying every day. Haha. [Plain] example 1: Don't you wish you had more energy... or less ambition? Example 2: Delores breezed along the surface of her life like a flat stone forever skipping along smooth water, rippling reality sporadically but oblivious to it consistently, until she finally lost momentum, sank, and due to an overdose of flouride as a child which caused her to suffer from chronic apathy, doomed herself to lie forever on the floor of her life as useless as an appendix and as lonely as a five-hundred pound barbell in a steroid-free fitness center. -- Winning sentence, 1990 Bulwer-Lytton bad fiction contest. example 3: The ripest fruit falls first. -- William Shakespeare, "Richard II"