I'm trying to search for a particular string, irrespective of case, in the REXX code, its not fetching all the occurrence of the string. For eg: I'm finding for all the occurences of the string ' Call 'ABCD' ' in one COBOL program. I have two calls but one call is of the format ' CALL 'ABCD' ' and the other is like 'Call 'ABCD''. The REXX exec is fetching me only one string, that's ' Call 'ABCD' '. But my requirement is to fetch both. Is there any way to search for the string irrespective of the case other than putting a 'OR' condition to check to both lower case and Upper case.