Re: echo $fred:s/str1/str2/

[Peter Stephenson <pws@xxxxxxx>]

zzapper wrote:
> echo $fred:s/bu/hhh/
> 
> I don't seem to be able to use regexp's in the substitute tho' it's suggested
>  that it's possible in
> the doc

You can't use patterns with that form, which is the history modifier
syntax.  You can use patterns with this form:

echo ${fred/bu/hhh}

A useful trick with this form if you need to manipulate the matched
part is to use the (#m) extended globbing flag and the $MATCH variable:

% fred="hello harry"
% print ${fred//(#m)[aeiou]/${(U)MATCH}}
hEllO hArry

pws


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