Add Serializable for all classes in project

add_serializable.sh

#!/bin/bash
function findClassesToImplementSerializable() {
for filename in $(find . -name "*.java"); 
	do
	echo $filename | /bin/grep -v "test";
	if [ "${?}" -eq 0 ]
		then
		echo "$filename";
		changeline;
	fi
	done
}

function changeline() {
	local elines=$(/bin/grep -E "import java.io.Serializable;|interface|public enum|serialVersionUID" $filename | wc -l);
	if [ "${elines}" -eq 0 ]
	then
		local line=$(cat $filename | /bin/grep "class" | /bin/grep -v "Serializable" | grep -v "@Remote(" | grep -v "@Local(" | head -1);
		#echo "antes: $line";
		echo $line | /bin/grep "implements";
		if [ "${?}" -eq 0 ]
		then
			local newline=$(echo $line | tr -d "{")", Serializable {";
		else
			local newline=$(echo $line | tr -d "{")" implements Serializable {";
		fi
		#echo "depois: $newline";
		sed -i "s/${line}/${newline}/" $filename;
		#cat $filename;
		addImportSerializable;
		echo "========== OK ============";
	else
		echo "========== NOK ===========";
	fi
	#addSerialVersionUID;
}

function addImportSerializable() {
	#local filename=AssinaturaEletronicaBW.java;
	local packageline=$(cat $filename | /bin/grep "package");
	#echo $packageline;
	local newpackageline=$(echo -e ${packageline}" import java.io.Serializable;");
	#echo $newpackageline;
	sed -i "s/${packageline}/${newpackageline}/" $filename;
}

##main
findClassesToImplementSerializable