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From: Robert Klemme <shortcutter@googlemail.com>
Newsgroups: comp.lang.java.programmer
Subject: Re: ant task to compute lines of code
Date: Sun, 18 Nov 2012 17:24:40 +0100
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On 11/18/2012 04:43 PM, Laura Schmidt wrote:
> Hello,
>
> I want to find out the total lines of code of a project using an ant task.
>
> On the commandline I would do this like this:
>
> find src -name *.java | wc -l

No, you wouldn't.  That would give you the number of source files - at 
best.  Worst case is an error from "find" indicating invalid command 
line arguments.  Other variants are also possible, e.g. including 
directories or symlinks in the count.

More successful approaches

find src -type f -name \*.java -exec cat {} + | wc -l

{
   echo 0
   find -type f -name \*.java -exec wc -l {} + \
   | sed -n 's#^ *\([0-9]\+\) \+total$#\1+#p'
   echo n
} | dc

Btw, all these also count empty lines.  For non empty lines something 
like this could work

{
   echo 0
   find -type f -name \*.java -exec egrep -hc '[^[:space:]]' {} + \
   | sed 'a +'
   echo n
} | dc


Kind regards

	robert