如何在你的MACOS，创建.bash_profile(隐藏文件)

A typical install of OS X won't create a .bash_profile for you.
When you want to run functions from your command line, this is a
must-have.(For ex:configure path to Android)

Start up Terminal

Type "cd ~/" to go to your home folder

Type "touch .bash_profile" to create your new file.

Edit .bash_profile with your favorite editor (or you can just type "open -e .bash_profile" to open it in TextEdit.

Add a line

export PATH=$PATH:<your-sdk-dir>/tools

(your-sdk-dir：Installation path of your android，then remove <>

)

6.OK

注：.bash_profile是属于系统文件（隐藏），可在终端输入以下命令来显示或隐藏文件（注意命令中的空格）：
显示
Mac

隐藏文件的命令：defaults write com.apple.finder AppleShowAllFiles -bool true

隐藏

Mac
隐藏文件的命令：defaults write com.apple.finder AppleShowAllFiles -bool false