install maven 3.5 on centos 7

installMaven.txt

# go to https://maven.apache.org/download.cgi

# download latest version Binary tar.gz archive file

# copy /opt directory
cd /opt

# extract tar file ,  replace x.x with downloaded version
tar xzvf apache-maven-x.x.0-bin.tar.gz

# create  soft link 
ln -s /opt/apache-maven-x.x.0 /opt/maven

# verify link
ll

# set environment variable  using  setMavenEnv.sh file in /etc/profile.d directory
vi /etc/profile.d/setMavenEnv.sh

#press insert and type following commands t0 set maven home and mvn path

#!/bin/sh
# Sets maven  home and add mvn to path

export M2_HOME=/opt/maven

export M2=$M2_HOME/bin

export PATH=$M2:$PATH

#press escape and type :wqa to save all and exit

# apply changes 
source /etc/profile.d/setMavenEnv.sh

# test maven home 
echo $M2_HOME

# test maven path 
mvn -version


# Set maven repository to common shared folder , other than  ${user.home}/.m2/repository
vi /opt/maven/conf/settings.xml

#search    Default: ${user.home}/.m2/repository , uncomment and change path
#press insert and type path 

<localRepository>/opt/mvn_repo</localRepository>

#press escape and type :wqa to save and exit

# verify changes 
cat /opt/maven/conf/settings.xml