[CentOS] Real sh? Or other efficient shell for non-interactive scripts

On 04/24/15 05:59, Les Mikesell wrote:
> The original ksh wasn't open source and might even have been an
> extra-cost item in AT&T unix.   And the early emulations weren't
> always complete so you couldn't count on script portability.  I
> generally thought it was safer to use perl for anything that took more
> than bourne shell syntax.

You're right about the extra cost.  In 1989 I bought the ksh source code 
from AT&T for $100.

Jack