third_party/protobuf/fix_permissions.sh - chromium/src - Git at Google

 #!/bin/bash
 for file in $(find . -type f); do
   if [ "$(head -c 2 $file)" == "#!" ]; then
     chmod u+x $file
   else
     chmod a-x $file
   fi
 done
	#!/bin/bash
	for file in $(find . -type f); do
	if [ "$(head -c 2 $file)" == "#!" ]; then
	chmod u+x $file
	else
	chmod a-x $file
	fi
	done