Bourne shell definition
(sh, Shellish). The original command-line interpreter shell
and script language for Unix
written by S.R. Bourne of Bell Laboratories
in 1978. sh has been superseded for interactive use by the Berkeley C shell
but still widely used for writing shell scripts.
There were even earlier shells, see glob
. [Details?] ash
is a Bourne Shell clone.
System: The Unix Shell", S.R. Bourne, Bell Sys Tech J 57(6):1971-1990 (Jul 1978)].