jeandat/count_lines_number.md

## count_lines_number.md

      
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    Count lines number in files

By combining the power of git and bash, we can have in an instant an estimation of lines number in a project.
For instance to count lines number in versionned perl files:
$ git ls-files | egrep ".*(driver|core).*pl$" | xargs wc -l

git ls-files will only return files versionned which is a first interesting filter.
egrep pattern will allow us to filter precisely a portion of project (by file extension, path, etc.)
wc -l will count lines by file and make the sum.

Found here : http://stackoverflow.com/questions/4822471/count-number-of-lines-in-a-git-repository

Warning, do not use grep -e which accepts only one pattern per -e. egrep is more useful.

Generate that kind of output :
$ git ls-files | egrep ".*(driver|core).*pl$" | xargs wc -l
    1090 cgi-bin/coreOVECC.pl
    2460 cgi-bin/driver.pl
    3550 total