Shell Script that Generates List of Git Commit Messages of All branches on a given day

todayCommit.sh

#! /usr/local/bin/zsh

authorName="Sungdoo Yoo" #Put your Name here
dayStart="8am" #Put the time when you start your day

for refName in $(git for-each-ref --format='%(refname)' refs/heads/);
do
    boilerPlateToRemove="refs/heads/"
    branchName="${refName//$boilerPlateToRemove/""}"
    result=""
    git log --author="$authorName" --since="$dayStart" $branchName| read result

    size=${#result}
    if [ $size -gt 0 ]
    then
        echo "========================"
        echo $branchName
        echo "========================"
        prettyLog=$(git log --pretty="%s" --reverse --since="$dayStart" --author="$authorName" $branchName| cat)
        echo $prettyLog
        echo "\n"
    fi
done