#!/bin/bash

for file in *
do
    if [[ $file == a* ]]; then
		echo "chmod 660 " "$file"
		chmod 660 "$file"
	elif [[ $file  == b* ]]; then
		echo "chmod 754 " "$file"
		chmod 754 "$file"
	else
		echo "chmod 600" "$file"
		chmod 600 "$file"
	fi
done