add throw example

examples/throw

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+# ----------------------
+# sf -- script framework
+# ----------------------
+
+# Declare sf variables
+sfdesc="A script that shows the usage of 'sfdeps'. It should always throw an error."
+
+sfdeps=("source" "nonexistent" "alsononexistent" "echo")
+
+# Include sf, this could be replaced with a long oneliner
+source "$(dirname $0)/../sf"
+
+# ----------------------
+# Actual script
+# ----------------------
+
+echo "If you see this, the commands 'source', 'nonexistent', 'alsononexistent' and 'echo' are available."