DOS ain't dead

save & restore environment (Developers)

posted by Rugxulo , Usono, 01.03.2026, 00:24

> > 4DOS and NT's CMD both have "SETLOCAL". So if you don't need any vars to
> > persist, try that.
>
> Thanks for that information. 4DOS is really "where it's at" isn't it?

Yes and no. It's brilliant, but I always avoided it to write "portable" scripts. But it does make some things easier. (Honestly, it no worse than relying on a POSIX shell!)

> > If you insist on this way (presumably to run on older shells), I'd
> suggest
> > putting it in a single .BAT like "SAVEENV.BAT [on | off]". The AWK
> scripts
> > are small enough to be in-place, but even an embedded AWK script (or
> ten)
> > is easy to use.
>
> Here's an attempt at SAVEENV.BAT:

Here's an old example of mine that may give you ideas: invnas97.bat

Complete thread:

• save & restore environment - bencollver, 28.02.2026, 00:52 (Developers)
  • save & restore environment - Rugxulo, 28.02.2026, 03:18
    • save & restore environment - bencollver, 28.02.2026, 04:26
      • save & restore environment - Rugxulo, 01.03.2026, 00:24
  • save & restore environment - boeckmann, 28.02.2026, 10:23
    • save & restore environment - bencollver, 28.02.2026, 15:20
      • save & restore environment - boeckmann, 28.02.2026, 19:26
        • save & restore environment - bencollver, 01.03.2026, 15:12
        • save & restore environment - bencollver, 08.03.2026, 00:45
          • save & restore environment - jadoxa, 08.03.2026, 01:39
            • save & restore environment - bencollver, 08.03.2026, 02:05
              • save & restore environment - boeckmann, 08.03.2026, 22:23
                • save & restore environment - boeckmann, 09.03.2026, 17:15
                  • save & restore environment - bencollver, 09.03.2026, 20:09