An analysis of those super interesting commands under Linux _unix Linux

Yes: output A string of y that can sometimes be used against many y/n selection applications. Output a lot ...
Banner: Print character title, is to use characters to spell out the big characters, it is best to maximize the window, or may not show the whole.
Ddate: Turn calendar into what other calendar, this is Sweetmorn, the 63rd day of discord in the Yold 3173
Fortune: Output A word, there are many kinds of content, it is said that there are Tang and song Ci (There are Tang and song Ci is Fortune-zh, after installation, fortune will randomly output Tang song ci or English sayings. ）

Cal 9 1752: Print the calendar, but those one months are problematic for the following reasons:
Ppop wrote, "Sniper wrote in his blog:" Today in a blog to see about the date implied a history of Linux introduction, very curious, according to the methods introduced by others to test. Code:cal 9 1752 can see: September 1752 S M Tu W Th F s 1 2 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 found September 2, 1752 The latter was 14th, for the following reasons: In February 1582, the Holy See sought to subtract 10 days from October 1582, so that the following October 4, 1852 was followed by 15th. In Italy, Spain and other countries have handled this. Other Catholic countries followed suit, but the Protestant countries were unwilling to revise, and the orthodox countries such as Greece were not modified until early 20th century, so the reform was not carried out in Britain and its colonies (including the United States) in September 1752. Then the September 2, 1752 followed by September 14, 1752. But under Windows, because the computer date can not be recalled at that time (1980 forward is 2099), so call VC Calendar control to write a calendar, September 1752 is very normal, it seems that this is a period to rely on Linux to understand the history. "

Tac:concatenate and print files in reverse to print the rows of the file in turn (Cat in turn). Give it a try.
Ptx-produce a permuted index of file contents, build index? I don't know
Xev: Print an instant x event
Xeyes: The one with the eye, the X, the first is to play.
Cowsay/cowthink: Print a calf (or other animal) speak or imagine, content can be customized
Factor: Decomposition factor
Shred: Overwrite file so it can't be read again (the legendary file shredder.) )
These two funny:

Apt-get Moo
(__)
(OO)
/------\/
/ | ||
*  /\---/\
~~   ~~
... "Have you mooed today?" ...

Apt-build Moo
(__)    ~
(OO)/
_____\/___/
/  /\ / /
~  /  * /
/ ___/
*----/\
/  \
/   /
~    ~
... "Have you danced today?" Discow! " ...
Try one of the following:
Aptitude Moo
Aptitude-v Moo
APTITUDE-VV Moo
APTITUDE-VVV Moo
APTITUDE-VVVV Moo
APTITUDE-VVVVV Moo
APTITUDE-VVVVVV Moo
APTITUDE-VVVVVVV Moo
APTITUDE-VVVVVVVVVVVVVVVVVVVV Moo

And make love, it's not fun to turn it into Chinese.

Others say who am I, not interesting enough. You can try who is sb.
In fact, the Who am behind is the same as anything else ...

Some say rm-fr/, and DD If=/dev/zero Of=/dev/mem, this is too bad, nothing to try, especially the root squads do not try this danger.