add exercise4.sh

shell_scripting_succinctly/exercise4.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+FILE_NAME="/etc/shadow"
+
+if [ -e $FILE_NAME ]
+then
+	echo "Shadow passwords are enabled."
+	if [ -w $FILE_NAME ]
+	then
+		echo "You have permissions to edit /etc/shadow."
+	else
+		echo "You DO NOT have permissions to edit /etc/shadow"
+	fi
+else
+	exit
+fi
+