Shell to see lines count history of a file added to git.

gitfilesizehistory.sh

#!/bin/sh

#
# list the given file's filesize next to each commit
# usage: git-fs-history path/to/file
#

if [ $# -ne 2 ]; then
        echo "Error: invalid number of arguments."
        exit 1
fi

echo "Lines,Date" > $2

# for all commits on this file
for commit in $(git log --format=%H $1); do
        $(git checkout $commit)
        commitDate=$(git show -s --format=%ci $commit)
        wordCountAll=$(wc -l $1)
        wordCount=($wordCountAll)
        echo "${wordCount[0]},${commitDate}" >> $2
done