Allied Telesis AT-S63 - Manual (Page 130)

Chapter 10: File System
130 Section II: Advanced Operations
Using Wildcards to Specify Groups of Files
You can use the asterisk character (*) as a wildcard character in some
fields to identify groups of files. In addition, a wildcard can be combined
with other characters. The following are examples of valid wildcard
expressions:
*.cfg
*.key
28*.cfg