ls2

Yubnub command search thru google.

Background : 

How to search yubnub commands through Google 

Suppose you forgot the name of the yubnub command which does the same thing as echo except that it can take larget input. You remember that its man page contained the words 'echo' and 'limitation'.

Enter the following in yubnub hompage:
ls echo limitation
This doesn't give any result, because ls is a phrase-search.

g site:www.yubnub.org echo limitation
This gives two results. But there is a better way.

g site:yubnub.org echo limitation
This gives four results. The last result is the man page of the echovar command and you found the command.

Instead you could have searched with three keywords:
g site:yubnub.org echo limitation length
Strangely, this doesn't show any man pages. it shows yubnub.org/parser/parse?command=ge and yubnub.org/golden_eggs.xml. If you click 'Cached', you will find the name of the echovar command. But it is quicker to copy some description from the result page and search with ls. For example, The result page displays a short description containing the phrase "large variables into your custom strings without this limitation".

Now, 
ls large variables into your custom strings without this limitation
gives the echovar command.