Bash regular expressions

Wed Dec 20 18:05:00 GMT 2006

I tried:
[[ abc =~ a.*c ]] && echo It works
It doesn't work too.
I did't try bash from gnu.org yet but debian bash (version 3.1.0(1)) works with and without quotes.
Boris
Eric Blake wrote:
> According to Boris Toloknov on 12/19/2006 1:45 PM:
>>> It seems that regular expressions [[ str =~ regex ]] do not work in bash.
>> For example the following expression doesn't match:
>> [[ abc =~ 'a.*c' ]] && echo It works
>>>> In bash 3.2, the [[ ]] quoting rules changed slightly. Since [[ already
> introduces special quoting rules, single quotes are not required; the
> regex is already protected by the shell from globbing. Try this instead:
>> [[ abc =~ a.*c ]] && echo It works
>> And since none of this is cygwin specific, you should report this upstream
> to bug-bash AT gnu DOT org if you think it is a bug.
>
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