David Korn Alive
Created the Korn shell at Bell Labs — job control, history, and the middle child between sh and bash.
19251950197520002025
Created KornShell
Created the KornShell (ksh, 1983) at AT&T — the POSIX shell baseline, fastest shell of its era — and wrote 'The KornShell' book.\n\nStill maintains ksh93; the shell of record on most commercial Unixes for decades.