Mac下配置环境变量的两种方式

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1.配置全局变量（永久有效）

root用户登录，修改 /etc/profile文件，末尾添加环境变量如下：

# System-wide .profile for sh(1)if [ -x /usr/libexec/path_helper ]; theneval `/usr/libexec/path_helper -s`fiif [ "${BASH-no}" != "no" ]; then[ -r /etc/bashrc ] && . /etc/bashrcfi#JDK settingJAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/HomeCLASSPAHT=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarPATH=$JAVA_HOME/bin:$PATH:export JAVA_HOMEexport CLASSPATHexport PATH#MySQL settingexport PATH=$PATH:/usr/local/mysql/bin#maven settingexport M2_HOME=/Users/pintec/jay/maven/apache-maven-3.5.0export PATH=$PATH:$M2_HOME/bin#go settingexport GOPATH=/usr/local/goexport GOBIN=$GOPATH/binexport PATH=$PATH:$GOBIN#mysqlexport PATH=$PATH:/usr/local/mysql/bin

刷新使配置生效

source /etc/profile

2.配置单用户全局变量（重启后配置失效）

root用户下，在根目录／下创建 .bash_profile文件，并设置如下信息

#JDK settingJAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/HomeCLASSPAHT=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarPATH=$JAVA_HOME/bin:$PATH:export JAVA_HOMEexport CLASSPATHexport PATH#MySQL settingexport PATH=$PATH:/usr/local/mysql/bin#maven settingexport M2_HOME=/Users/pintec/jay/maven/apache-maven-3.5.0export PATH=$PATH:$M2_HOME/bin#go settingexport GOPATH=/usr/local/goexport GOBIN=$GOPATH/binexport PATH=$PATH:$GOBIN

刷新配置文件

source /.bash_profile

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