ubuntu环境变量设置

配置环境变量

临时

export PATH=/home/qi/share/usr/local/arm/3.4.1/bin:$PATH

永久1

vim ~/.bashrc
export PATH=/home/qi/share/usr/local/arm/3.4.1/bin:$PATH
#保存退出
source ~/.bashrc

永久2

vim /etc/profile
export PATH=/home/qi/share/usr/local/arm/3.4.1/bin:$PATH
#保存退出
source /etc/profile

永久3

vim /etc/environment
在PATH="/usr/local/sbin:/usr/sbin:/usr/bin:/sbin:/bin"中加入 ":命令行路径"
#保存退出

查看当前环境变量

echo $PATH