1. Gradle:
download:https://services.gradle.org/distributions/gradle-2.13-all.zip
install: unzip gradle-2.13-all.zip -d /usr/local/
ln -s /usr/local/gradle-2.13/ /usr/local/gradle
touch /etc/profile.d/gradle.sh
export GRADLE_HOME=/usr/local/gradle
export PATH=${PATH}:${GRADLE_HOME}/bin
/etc/profile
source /etc/profile.d/gradle.sh
. /etc/profile
gradle -v