> Dan Cross also has walk.c and sor.c (mentioned on the list earlier) -- Dan,
> please, could you  share them?

Sure.  I'll include them in this email.  Note, however, that sor is an
rc script, not a C program.  Here are some pointers to my original posts
on the subject, as well.  These are mainly useful as an explanation of
my position and for the examples of find idioms rendered in walk/sor.

https://lists.cse.psu.edu/archives/9fans/2002-October/020820.html
https://lists.cse.psu.edu/archives/9fans/2002-October/020822.html

	- Dan C.