Porting a shell script from BASH to ASH

[Violao]

Hi.

I had a shell script running on a BASH shell who worked pretty well. However, i try to run it on a ASH shell, and now it's returning the following error:

Syntax error: Bad substitution

The problem is i use the method ${PARAMETER//PATTERN/STRING} to replace PATTERN for STRING in a string labelled as PARAMETER, and perhaps this is just for BASH shell.

How can i do a similar thing with ASH shell?

Thank you

[burnit]

Surely you can use a sed command, but I can't say how you can do it, because I don'ìt know how use sed!