MPE/iX - CI Programming for Stability

July 18, 2008 HP World '01 8
UDC / script comparisons (cont)
• Differences:
• scripts can be variable record width files
• UDCs require lock access, scripts don’t
• script names can be in POSIX syntax, UDC filenames must be in
MPE syntax
• UDC name cannot exceed 16 chars, script name length follows
rules for MPE and POSIX named files
• EOF for a script is the real eof, end of a UDC command is one
or more asterisks, starting in column one