Sorry to be a bother but everything programming seems almost foreign to me.
Im trying to write a shell script (using 'sed' and 'tr' etc.) which replaces a string of text with another. That is the easy part. The part Im stuck with is making it case insensitive.
1. so that case doesnt matter to the trasformation; and
2. then the changed word/letters keeping the same case pattern it had before it was transformed.
Cheers in advance for any help or assisstance u can give me