echo **


 
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# 1  
Old 06-28-2011
echo **

Hi,

The current directory has two files: a, b. echo ** gets the result a b, instead of a b a b. I don't understand this. Can someone give some explanation?

Thanks!
# 2  
Old 06-28-2011
The wildcard * means zero or more characters.
If the first * displays every character (since it is greedy), the second * is irrelevant, since there is nothing else to match.


Now if you want to display twice the same content
Code:
echo * *

insert a space between wildcards

Last edited by Aia; 06-28-2011 at 10:22 PM..
# 3  
Old 06-28-2011
Thanks!
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