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

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Environment: debian 8

Installing MySQL

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

sudo apt-get install mysql-serversudo mysql_secure_installation # 進行一些初始化設定mysql -u root -p 

 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 updatesudo apt-get install default-jresudo apt-get install default-jdk

2. Managing Java：

sudo update-alternatives --config java # 同時可以看到 Java 被安裝的位置

3. Setting the JAVA_HOME Environment Variable：

[email protected]:~# sudo update-alternatives --config javaThere is only one alternative in link group java (providing /usr/bin/java): /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java # 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 筆記 #02# Installing MySQL & Installing the Default JRE/JDK