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

On Fri, Apr 24, 2015 at 08:32:45AM -0400, Scott Robbins wrote:
> Wasn't Solaris, which for awhile at least, was probably the most popular
> Unix, using ksh by default?

Solaris /bin/sh was a real real dumb version of the bourne shell.
Solaris included /bin/ksh as part of the core distribution (ksh88 was a
part of the SVr4 specification) and so many scripts were written with
#!/bin/ksh at the start (including tools like "patchadd").

Note Solaris had bugs in those tools because they didn't start
"#!/bin/ksh -p" so if you had a $ENVFILE that included lines like "set
-o noclobber" or had aliases then scripts would break (patchadd was a
perfect example).  Many of these got fixed by Solaris 8 :-)

-- 

rgds
Stephen