=__ify

   1 for func in $*; do
   2     for file in `find sysdeps -name "${func}.c"`;
   3     do
   4         script=/tmp/foo$$;
   5         ( echo "%s/${func}/__&/g";
   6         echo x )>$script ;
   7         ex $file <$script ;
   8         newfile=`echo $file | sed "s/${func}/__&/"`;
   9         mv $file $newfile;
  10         echo $newfile;
  11     done
  12 done