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Programming Forum and web based access to our favorite programming groups.> That was applicable 20 years ago and is applicable today > and will be applicable tomorrow. Just over 20 years ago PCs were mostly single-user floppy disk machines. MS-DOS was a jumped up version of CP/M that had the inferior FAT file system from a 1977 BASIC machine strapped to it. Executing utilities from a Cobol program usually resulted in running out of memory and may result in open files being corrupted even if the rather poor SHARE was loaded in later versions. Yes, checking files after every update and backing up was entirely applicable to those systems. Writing your own programs rather than attempting to execute utilities under Cobol control was sensible, even essential. If you are still using DOS and/or FAT then that will still be applicable because you will still have a crap system. Your advice may even be 'better' for anyone else using DOS and/or FAT. However, most of us are no longer stuck in a time warp that requires such mechanisms. I did use CP/M (and MP/M) and other 8 bit systems in the late 70s/early 80s and know what most of the limitations were, I avoided MS-DOS entirely, but used (non-MS) DOS based multiuser systems and Unix which had reliable file systems and usable command line utilities that could do things in background or automatically and didn't have the problems from 20 years ago that you still try to avoid.
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