--rw-rw-rw- geoff sys   19 Mar  4  2011 email
--rw-rw-rw- geoff sys   33 Mar  4  2011 files
--rw-rw-rw- geoff sys   73 Mar  7  2011 notes
--rw-rw-rw- geoff sys   58 Mar  7  2011 origls
--rw-rw-r-- geoff sys 3656 Mar  4  2011 ratrace.c
--rw-rw-r-- geoff sys 3354 Mar  4  2011 ratrace.c.orig
--rw-rw-rw- geoff sys  568 Mar  4  2011 readme