How do I give 2 parameters to programs in an unix enviroment?

[hackmiester (Hunter Fuller)]

On 8 September 2006, at 08:10, Lasse Edlund wrote:

> If I have two files "foo" and "bar" and try to run diff on them I  
> write:
> $diff foo bar
> I can also write
> $cat foo | diff - bar
> But how do I give a program two (2) commands? not only to diff
> but to any program that wants double input...
> I wanna do
> $cat foo | cat bar | diff - -

The entire purpose of cat is to concatenate files (make them output  
one after another). So, do:

cat foo bar | diff - -

> especially with echo commands that would be handy so I dont have to
> create files!
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-- 
hackmiester (Hunter Fuller)

<svinx> yknow when you go to a party, and everyones hooked up except  
one guy and one girl
<svinx> and so they look at each other like.. do we have to?
<svinx> intel & nvidia must be lookin at each other like that right now


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