统计文件行数（单个文件）：

wc -l file

例如：

homer@ubuntu:~/workspace/android/game$ wc -l LGameAndroid2DActivity.java 

906 LGameAndroid2DActivity.java

统计目录所有文件行数（全部目录）：

find . -name *.java | xargs wc -l

例如：

homer@ubuntu:~/workspace/android$ find . -name *.java | xargs wc -l

    817 ./game/core/LHandler.java

    140 ./game/core/LFlicker.java

    ...

    515 ./game/utils/collection/ArrayMap.java

    162 ./game/utils/CollisionUtils.java

    178 ./game/utils/NumberUtils.java

  68753 total

统计目录并按行数排序（按行大小排序）：

 find . -name *.java | xargs wc -l | sort -n

homer@ubuntu:~/workspace/android$ find . -name *.java | xargs wc -l | sort -n

     25 ./game/action/sprite/Collidable.java

     26 ./game/core/graphics/component/CollisionQuery.java

     27 ./game/core/graphics/filter/ImageFilter.java

     28 ./game/LMode.java

     ...

   1467 ./game/core/geom/Path2D.java

   1919 ./game/core/graphics/Screen.java

   2417 ./game/core/graphics/device/LGraphics.java

   3050 ./game/core/geom/AffineTransform.java

  68753 total

统计目录并按行数排序（按行文件名排序）：

find . -name *.java | xargs wc -l | sort -k2

homer@ubuntu:~/workspace/android$ find . -name *.java | xargs wc -l | sort -k2

    210 ./game/action/ActionControl.java

    116 ./game/action/ActionEvent.java

     34 ./game/action/ActionListener.java

     ....

    178 ./game/utils/NumberUtils.java

    342 ./game/utils/RecordStoreUtils.java

     58 ./game/utils/ScreenUtils.java

    650 ./game/utils/StringUtils.java

  68753 total