diff --git a/snippets/sh.snippets b/snippets/sh.snippets
index ffa9adb..508056c 100644
--- a/snippets/sh.snippets
+++ b/snippets/sh.snippets
@@ -1,6 +1,6 @@
-# #!/bin/bash
+# Shebang. Executing bash via /usr/bin/env makes scripts more portable.
 snippet #!
-	#!/bin/bash
+	#!/usr/bin/env bash
 	
 snippet if
 	if [[ ${1:condition} ]]; then
@@ -38,3 +38,6 @@ snippet go
 			${4:#staments};;
 		esac
 	done
+# Set SCRIPT_DIR variable to directory script is located.
+snippet sdir
+	SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"