First batch of extra files

eps/hpr2659/hpr2659_bash11_ex4.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+#
+# String comparison with a pattern, using one of a list of patterns
+#
+for str in 'dog' 'pig' 'rat' 'cat' ''; do
+    if [[ $str == @(pig|dog|cat) ]]; then
+        echo "Matched '$str'"
+    else
+        echo "Didn't match '$str'"
+    fi
+done