from: http://lueewy.com/?p=37 fixed version, still ugly. [usage] sh ./git_commmit_line_count.sh [$author_name]

git_commit_line_count.sh

#!/bin/sh

insert=0
delete=0

git log --author=$1 --shortstat --pretty=format:""|sed /^$/d > .tmp.count

while read line
do
current=`echo $line|awk -F ',' '{printf $2}'|awk '{printf $1}'`
if [ -z "$current" ]; then
    current=0;
fi
insert=`expr $insert + $current`
current=`echo $line|awk -F ',' '{printf $3}'|awk '{printf $1}'`
if [ -z "$current" ]; then
    current=0;
fi
delete=`expr $delete + $current`
done < .tmp.count

echo $1 $insert insertions, $delete deletions
rm .tmp.count