find . -name "*.java" -o -name "*.xml" -o -name "*.properties" | xargs cat | tr -d '\r' | sed 's/^[ \t]*//g' | grep -v "^$" | grep -v "^/[/*]" | grep -v "^#" |wc -l
find 命令:
http://man.linuxde.net/find
相关资料:http://blog.csdn.net/lida2003/article/details/9896403