ash.md

(Some research on the ash shell "fast, small, POSIX-compatible Unix shell")

Noted from FreeBSD (and used in BusyBox)

HISTORY

 A sh command, the Thompson shell, appeared in Version 1 AT&T UNIX.  It
 was superseded in Version 7 AT&T UNIX by the Bourne shell, which inher-
 ited the name sh.

AUTHORS

 This version of sh was originally written by Kenneth Almquist.

• Wikipedia: Almquist shell
• Official site: http://www.in-ulm.de/~mascheck/various/ash
  • original announcement
  • helpful shell differences
• ash(1)