-##my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime;
-my $date = `date +%m%d`;
-chomp $date;
+die "~/.emacs.d or ~/.init.el or ~/.emacs exist. Backup them first.\n"
+ if -e "$home/.init.el" or -e "$home/.emacs.d" or -e "$home/.emacs";