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Extract a string up to the first occurence of a substring

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# 1  
Old 12-12-2009
Extract a string up to the first occurence of a substring
Hi,

I'm a newbie to shell scripting and have searched the forum but couldn't find what i was looking for.

Basically I have a list of filenames like...
123-fileone.txt

I want to be able to extract the prefix up to the first '-'. So I'd end up with 123. I have attempted it using a pretty basic regex ({F%-*}) but that trips up when there is more than 1 occurrence of '-' in the filename, which there can be.

I'm sure it's a simple thing to do...just not for me Smilie

Thanks.

Kirk.
# 2  
Old 12-12-2009
Code:
$ string="123-fileone.txt"
$ echo ${string%%-*}
123

# 3  
Old 12-12-2009
Perfect! Thanks...

(Don't I feel stupid now Smilie)
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