Hi

I use the following code to open a text file and update any strings such as "apple" to orange". 

open (IN,"c:\\data");
          @lines = <IN>;
          close IN;
        
@lines = map { s/\b$old_hostname\b/$new_hostname/sgi; $_ } @lines;
          open (OUT,">c:\\data") || "can't open data :$! ";
          print OUT @lines;

[download]
But now I must change any words that that have "apple" as a substring to any words that have "orange" as a substring. For example "data/applered" or "new_apple_dark" becomes " data/orangered" "new_orange_dark" and so on .

How can I alter my substitution to make it work.

--thanks kirk

In reply to String substitution by kirk123

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