cloc工具统计项目代码量

通常开始接手一个项目时，往往不清楚项目到底有多大，代码量具体有多少行。linux下提供了一个很好的工具cloc来计算项目的代码量。

一、首先需要安装cloc，这里以ubuntu为例。

sudo apt-get install cloc

二、查看cloc的使用方法，使用cloc --help

defined(%hash) is deprecated at /usr/bin/cloc line 1277.
	(Maybe you should just omit the defined()?)

Usage: cloc [options] <file(s)/dir(s)> | <report files>

 Count physical lines of source code in the given files (may be
 archives such as compressed tarballs or zip files) and/or
 recursively below the given directories.

 Input Options
   --extract-with=<cmd>      This option is only needed if cloc is unable
                             to figure out how to extract the contents of
                             the input file(s) by itself.
                             Use <cmd> to extract binary archive files (e.g.:
                             .tar.gz, .zip, .Z).  Use the literal '>FILE<' as 
                             a stand-in for the actual file(s) to be
                             extracted.  For example, to count lines of code
                             in the input files 
                                gcc-4.2.tar.gz  perl-5.8.8.tar.gz  
                             on Unix use  
                               --extract-with='gzip -dc >FILE< | tar xf -'
                             or, if you have GNU tar,
                               --extract-with='tar zxf >FILE<' 
                             and on Windows use: 
                               --extract-with="\"c:\Program Files\WinZip\WinZip32.exe\" -e -o >FILE< ."
                             (if WinZip is installed there).
   --list-file=<file>        Take the list of file and/or directory names to 
                             process from <file> which has one file/directory 
                             name per line.  See also --exclude-list-file.
   --unicode                 Check binary files to see if they contain Unicode
                             expanded ASCII text.  This causes performance to
                             drop noticably.

 Processing Options
   --by-file                 Report results for every source file encountered.
   --by-file-by-lang         Report results for every source file encountered
                             in addition to reporting by language.
   --diff <set1>