0.9b (c) 1995 Peter Childs
The default mode for opening files in REXX is READ/WRITE (even if you open the file implicitly via the <LINEIN function!). This prevents other programs from opening the file even if the program that opens this file first only wants to read from the file.
To avoid being locked out of a file like this, I suggest you use an explicit call of the function <STREAM to open a file in READ mode, if you only want to read from it.
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