GIT - Fix User Information

gitFixUserInfo.sh

#!/bin/sh
git filter-branch -f --env-filter '

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

if [ "$GIT_COMMITTER_EMAIL" = "jon.doe@gmail.com" ]
 then
    cn="Kenny Cason"
    cm="kenneth.cason@gmail.com"
fi
if [ "$GIT_AUTHOR_EMAIL" = "jon.doe@gmail.com" ]
 then
    an="Kenny Cason"
    am="kenneth.cason@gmail.com"
fi
if [ "$GIT_AUTHOR_NAME" = "Jon Doe" ]
 then
    cn="Kenny Cason"
    cm="kenneth.cason@gmail.com"
fi
if [ "$GIT_COMMITTER_NAME" = "Jon Doe" ]
 then
    an="Kenny Cason"
    am="kenneth.cason@gmail.com"
fi

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