MY requirement is :- I want to replace a particular string from different members of a same PDS. Suppose My PDS have 45 members and the string I want to replace is 'TEXT'. This string can be present in any of the members.
Do you have any TSO command or through REXX programming, we can replace the string with your desired string in all the members of the same PDS without actually opening each member and replacing one by one.
It doesn't have to be REXX: For complex string manipulations, I prefer to write my edit macros in COBOL. For huge libraries, obtaining the list of members is fasters when reading the PDS directory in Assembler.
However, for "normal" missions, REXX would be an excellent solution.
I supposed you need to change string within each members and not member names.
So if your need is this the best way that you don't pay attention to process each member is to call the so calles utility of IBM "IPOUPDTE" through rexx.