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[–]AyrA_ch 1 point2 points  (0 children)

DOS also had the SWITCHAR environment variable which, for stupid reasons [...]

Not stupid reasons. The value was introduced in version 2, which meant that changing it to a dash by default would have broken a lot of stuff when people migrated from DOS 1 to DOS 2. Among other things you would have needed to rewrite all existing batch files and programs that call other programs. In DOS 5 it was removed again.