rm -f Makefile cp Makefile.dst Makefile chmod u+w Makefile ed - Makefile <<'EOF' g/^#USG /s/// g/^#V7 /d g/^#BSD4_1 /d w q EOF rm -f defs.h cp defs.dist defs.h chmod u+w defs.h # ed - defs.h <<'EOF' # w # q # EOF