diff --git a/Git-change-author.sh b/Git-change-author.sh
new file mode 100644
index 0000000..c5e9e16
--- /dev/null
+++ b/Git-change-author.sh
@@ -0,0 +1,21 @@
+#!
+if [[ -z "$1" || "$1" == "--help" || -z "$2" ]]; then
+    echo '   Usage: git-change-author "Your Name" "email@address" [SHA1]'
+    exit 1
+fi
+AUTHOR="$1"
+EMAIL="$2"
+START_HASH="${3:---root}"
+echo "On the next screen, you need to change 'pick' to 'edit' for every commit which you wish to alter."
+echo ""
+echo -n "Press ENTER to continue."
+read
+git rebase --rebase-merges -i ${START_HASH}
+while [ "$?" -eq 0 ]; do
+    git -c user.name="${AUTHOR}" -c user.email="${EMAIL}" commit --amend --no-edit --author "${AUTHOR} <${EMAIL}>"
+    git rebase --continue
+done
+git rebase --rebase-merges --committer-date-is-author-date "${START_HASH}"
+echo ""
+echo ""
+echo "Don't forget to run \`git push -f\` - preferably on a test branch first."