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+#print
+Sometimes you want to request one of a limited
+range of characters. This is possible with an
+expression like
+ [a-d]
+which matches a, b, c, or d. Thus, to take
+some combinations
+ ab[c-f]
+matches
+ abc, abd, abe, abf
+Try typing "ls a[0-9]"
+and see how many files it matches. Type that
+number in the form "answer N".
+#create a0
+#create a1
+#create a5
+#create ax
+#copyin
+#user
+#uncopyin
+#match 3
+#log
+#next
+9.1a 10
+9.2a 4