diff --git a/add.sh b/add.sh
new file mode 100755
index 0000000..483a7d3
--- /dev/null
+++ b/add.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/zsh
+
+SCRIPTPATH="$( cd "$(dirname "$0")" ; pwd -P )"
+NUMBER=$1
+
+if [ ! -d "${SCRIPTPATH}/day_${NUMBER}" ]; then
+  mkdir "${SCRIPTPATH}/day_${NUMBER}"
+else
+  echo "folder ${SCRIPTPATH}/day_${NUMBER} already exists"
+  exit
+fi
+
+cd "${SCRIPTPATH}/day_${NUMBER}" || exit
+
+touch input.txt part_1.php part_2.php
+
+echo "DONE"
+
+exit
\ No newline at end of file