diff --git a/scripts/common/string.sh b/scripts/common/string.sh
new file mode 100644
index 0000000..13f89b3
--- /dev/null
+++ b/scripts/common/string.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+[ -n "${_STRING_SH_}" ] && return || readonly _STRING_SH_=1
+[ -n "${_VERBOSE_}" ] && echo "-- INCLUDE: string.sh"
+
+_startswith() { [ "$1" != "${1#$2}" ]; }
+_endswith() { [ "$1" != "${1%$2}" ]; }