.../build_tools$ rm ../autorevision.h
rm: remove regular file `../autorevision.h'? y
.../build_tools$ sh ./autorevision.sh ".." ".."
.../build_tools$ grep SVN ../autorevision.h
#define DEVEL_VERSION "SVN r1667M (via git)"
.../build_tools$ cp /dev/null ../autorevision.h
cp: overwrite `../autorevision.h'? y
.../build_tools$ sh ./autorevision.sh ".." ".."
.../build_tools$ ls -l ../autorevision.h
-rw-r--r-- 1 chris chris 0 Feb 11 13:25 ../autorevision.h
.../build_tools$ bash ./autorevision.sh ".." ".."
./autorevision.sh: line 65: return: can only `return' from a function or sourced script
.../build_tools$ ls -l ../autorevision.h
-rw-r--r-- 1 chris chris 69 Feb 11 13:25 ../autorevision.h
.../build_tools$