Install Protobuf Centos 7

#!/bin/bash
yum install libtool
git clone https://github.com/google/protobuf.git
cd protobuf
./autogen.sh
./configure
make
make check
sudo make install
cd java
yum install maven
mvn test
mvn install
mvn package

git clone https://github.com/grpc/grpc-java.git
cd grpc-java
./gradlew build
./gradlew install
cd compiler
../gradlew java_pluginExecutable >& log.javacompiler
sudo ln -s /home/protobuf/grpc-java/compiler/build/binaries/java_pluginExecutable/protoc-gen-grpc-java /usr/local/bin/

cd
mkdir out
protoc hello_world.proto --grpc-java_out=out --java_out=out

# lib dependencies
wget -c http://search.maven.org/remotecontent?filepath=com/google/guava/guava/18.0/guava-18.0.jar