build/envsetup.sh 学习

在android源码的根目录下执行:

. build/envsetup.sh

可以获得下列非常方便的命令：

croot:   Changes directory to the top of the tree.
m:       Makes from the top of the tree.
mm:      Builds all of the modules in the current directory.
mmm:     Builds all of the modules in the supplied directories.
cgrep:   Greps on all local C/C++ files.
jgrep:   Greps on all local Java files.
resgrep: Greps on all local res/*.xml files.
godir:   Go to the directory containing a file.

尝试这些，你会感到方便快捷！