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regular expression and ls

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# 1  
Old 12-16-2011
regular expression and ls
hello

using KSH shell
i have those files in a folder
Code:
FILE01
FILE1
FILE02
FILE2
FILE001
FILE0001

in a script i would like to list all the files through regular expressions
i tried this
Code:
ls FILE[0-9][0-9]+*

but i receive this error
Code:
ls: 0653-341 The file FILE[0-9][0-9]+* does not exist.

what is wrong in my ls + regular expressions ?

thanks
ade05frSmilie
Last edited by Franklin52; 12-16-2011 at 11:57 AM.. Reason: Please use code tags for data and code samples, thank you
# 2  
Old 12-16-2011
Those are called globs. Different from regular expressions.
Its a shell feature. However couple of stuffs are common (square brackets) which leads to the confusion with the regular expression. "+" is a regex quantifier hence throwing error.

Try:
Code:
ls FILE[0-9]*[0-9]

In short, Globs having the following features

Code:
* (star) matches any character or sequence of characters, including an empty sequence.
? (question mark) matches any single character.
[ ] (square brackets) matches any of the enclosed characters. Within the brackets, you can refer to a range of characters by using – (hyphen).

# 3  
Old 12-16-2011
thanks it works
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