Script to change git authorship from Marissa to Parth

change_author.sh

#!/bin/sh
 
git filter-branch --env-filter '
 
an="$GIT_AUTHOR_NAME"
am="$GIT_AUTHOR_EMAIL"
cn="$GIT_COMMITTER_NAME"
cm="$GIT_COMMITTER_EMAIL"
 
if [ "$GIT_COMMITTER_EMAIL" = "Marissa_novak@hmc.edu" ]
then
    cn="Parth Patel"
    cm="parthdineshp@gmail.com
if [ "$GIT_AUTHOR_EMAIL" = "Marissa_novak@hmc.edu" ]
then
    an="Parth Patel"
    am="parthdineshp@gmail.com"
fi

export GIT_AUTHOR_NAME="$an"
export GIT_AUTHOR_EMAIL="$am"
export GIT_COMMITTER_NAME="$cn"
export GIT_COMMITTER_EMAIL="$cm"
'