I have a REXX that reads contents from 2 files, edits the lines and concatenates into a single output file. I am reading the data into different stem variables. Is there any way to concatenate both the stem variables into a single stem variable? I tried using "PIPE" but its giving RC=-193, probably due to a library issue. Are there any alternate ways (other than looping through the stem) to concatenate these two stem/compound variables?