source(1) on FreeBSD
The text acd0c954e059, as FreeBSD 2.1.7.1-RELEASE, FreeBSD 2.1.7-RELEASE, FreeBSD 2.1.5-RELEASE shipped it.
a shell (command interpreter) with C-like syntax
Flags it lists
-
-V -
-X -
-b -
-c -
-e -
-f -
-i -
-l -
-m -
-n -
-s -
-t -
-v -
-x -
-y