1、执行如下指令可以统计Android源码目录下的 所有的mk文件的总数及其内容（这是分析源码的很好的工具）
for i in `find . -maxdepth 1 -type d`
do
echo $i
mkdir -p ~/Desktop/android_mk/$i
find $i -type f -name "*.mk" -print | echo -e ""$i" Total is:`wc -l`" >> ~/Desktop/android_mk/total_mk_list_about.txt
find $i -type f -name "*.mk" -print | echo -e "/n"$i"'s Android.mk Total number is:`wc -l`/n" > ~/Desktop/android_mk/$i/"$i"_mk_list.txt
find $i -type f -name "*.mk" -print >> ~/Desktop/android_mk/$i/"$i"_mk_list.txt
find $i -type f -name "*.mk" -printf "/n# ============================================================/n# " -print -printf "# ============================================================/n/n" -exec cat {} /; >> ~/Desktop/android_mk/$i/"$i"_mk_content.txt
done
mv ~/Desktop/android_mk/._mk_content.txt ~/Desktop/android_mk/total_mk_content.txt
mv ~/Desktop/android_mk/._mk_list.txt ~/Desktop/android_mk/total_mk_list.txt
同理，如果我们要分析linux源码，可以执行：
for i in `find . -maxdepth 1 -type d`
do
echo $i
mkdir -p ~/Desktop/linux_Makefile/$i
find $i -type f -name "Makefile" -print | echo -e ""$i" Total is:`wc -l`" >> ~/Desktop/linux_Makefile/total_Makefile_list_about.txt
find $i -type f -name "Makefile" -print | echo -e "/n"$i"'s Makefile Total number is:`wc -l`/n" > ~/Desktop/linux_Makefile/$i/"$i"_Makefile_list.txt
find $i -type f -name "Makefile" -print >> ~/Desktop/linux_Makefile/$i/"$i"_Makefile_list.txt
find $i -type f -name "Makefile" -printf "/n# ============================================================/n# " -print -printf "# ============================================================/n/n" -exec cat {} /; >> ~/Desktop/linux_Makefile/$i/"$i"_Makefile_content.txt
done
mv ~/Desktop/linux_Makefile/._Makefile_content.txt ~/Desktop/linux_Makefile/total_Makefile_content.txt
mv ~/Desktop/linux_Makefile/._Makefile_list.txt ~/Desktop/linux_Makefile/total_Makefile_list.txt
以2.6.30源码为例，结果为：
linux2.6.30 Total is:1143
|-net Total is:60
|-usr Total is:1
|-
block Total is:1
|-
firmware Total is:1
|-
kernel Total is:5
|-
include Total is:0
|-
Documentation Total is:16
|-
ipc Total is:1
|-
mm Total is:1
|-
drivers Total is:394
|-
lib Total is:5
|-
security Total is:7
|-
init Total is:1
|-
sound Total is:81
|-
arch Total is:480
|-
scripts Total is:9
|-
samples Total is:5
|-
virt Total is:0
|-
fs Total is:72
|-
crypto Total is:2
2、Android1.5源码包含的mk文件总数及其列表如下：
android Total is:1018
|-
frameworks Total is:90
|-
external Total is:535
|-
system Total is:57
|-
hardware Total is:16
|-
packages Total is:47
|-
bootable Total is:18
|-
build Total is:92
|-
bionic Total is:10
|-
out Total is:2
|-
development Total is:107
|-
dalvik Total is:26
|-
prebuilt Total is:18
android's Android.mk Total number is:1018
./frameworks/policies/base/phone/Android.mk
./frameworks/policies/base/mid/Android.mk
./frameworks/policies/base/PolicyConfig.mk
./frameworks/base/media/tests/MediaFrameworkTest/Android.mk
./frameworks/base/media/libmediaplayerservice/Android.mk
./frameworks/base/media/libdrm/Android.mk
./frameworks/base/media/libdrm/mobile2/Android.mk
./frameworks/base/media/libdrm/mobile1/Android.mk
./frameworks/base/media/mediaserver/Android.mk
./frameworks/base/media/jni/Android.mk
./frameworks/base/media/jni/soundpool/Android.mk
./frameworks/base/media/libmedia/Android.mk
./frameworks/base/media/sdutils/Android.mk
./frameworks/base/opengl/libagl/Android.mk
./frameworks/base/opengl/tests/angeles/Android.mk
./frameworks/base/opengl/tests/Android.mk
./frameworks/base/opengl/tests/finish/Android.mk
./frameworks/base/opengl/tests/filter/Android.mk
./frameworks/base/opengl/tests/tritex/Android.mk
./frameworks/base/opengl/tests/textures/Android.mk
.....................................................................................................
3、如framewoks目录下，统计出的mk总数及其文件内容格式如下：
./frameworks's Android.mk Total number is:90
./frameworks/policies/base/phone/Android.mk
./frameworks/policies/base/mid/Android.mk
./frameworks/policies/base/PolicyConfig.mk
./frameworks/base/media/tests/MediaFrameworkTest/Android.mk
./frameworks/base/media/libmediaplayerservice/Android.mk
./frameworks/base/media/libdrm/Android.mk
./frameworks/base/media/libdrm/mobile2/Android.mk
./frameworks/base/media/libdrm/mobile1/Android.mk
./frameworks/base/media/mediaserver/Android.mk
./frameworks/base/media/jni/Android.mk
./frameworks/base/media/jni/soundpool/Android.mk
./frameworks/base/media/libmedia/Android.mk
./frameworks/base/media/sdutils/Android.mk
./frameworks/base/opengl/libagl/Android.mk
./frameworks/base/opengl/tests/angeles/Android.mk
........................................................................
# ============================================================
# ./frameworks/policies/base/phone/Android.mk
# ============================================================
LOCAL_PATH:= $(call my-dir)
# the library
# ============================================================
include $(CLEAR_VARS)
LOCAL_SRC_FILES := /
$(call all-subdir-java-files)
LOCAL_MODULE := android.policy_phone
LOCAL_UNINSTALLABLE_MODULE := true
include $(BUILD_JAVA_LIBRARY)
# ============================================================
# ./frameworks/policies/base/mid/Android.mk
# ============================================================
LOCAL_PATH:= $(call my-dir)
# the library
# ============================================================
include $(CLEAR_VARS)
LOCAL_SRC_FILES := /
$(call all-subdir-java-files)
LOCAL_MODULE := android.policy_mid
LOCAL_UNINSTALLABLE_MODULE := true
include $(BUILD_JAVA_LIBRARY)
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