Linux Notes #02 # Installing MySQL & Installing the Default JRE/JDK

Environment:debian 8

Installing MySQL

Reference material:https://linode.com/docs/databases/mysql/how-to-install-mysql-on-debian-8/

sudo Install mysql-serversudo

Installing the Default JRE/JDK

Reference material:https://www.digitalocean.com/community/tutorials/how-to-install-java-with-apt-get-on-debian-8

1. Installing the Default JRE/JDK:

sudo apt-get updatesudoinstall default-JREsudoinstall DEFAULT-JDK

2. Managing Java:

sudo update-alternatives--config Java # can also see where Java is installed

3. Setting the Java_home Environment Variable:

sudo update-alternatives- in Link Group Java (providing/usr/bin/java):/usr/lib/jvm/java- 7 # Copy this path! Nothing to configure. [Email protected]:sudo vim/etc/environment[email protected]:~# source/etc/Environment # Reload [Email protected]:echo  $JAVA _home/usr/lib/jvm/java-7-openjdk-amd64/jre/bin /java

Contents of /etc/environment :

Java_home="/usr/lib/jvm/java-8-oracle"# Your own copied path

Linux Notes #02 # Installing MySQL & Installing the Default JRE/JDK