Korn Shell: Unix and Linux Programming Manual, Third Edition, The

Filename Substitution

File name substitution is a feature which allows special characters and patterns to substituted with file names in the current directory, or arguments to the case and [[...]] commands.

Pattern-Matching Characters/Patterns

?	match any single character
*	match zero or more characters, including null
[abc]	match any characters between the brackets
[x–z]	match any characters in the range x to z
[a–ce–g]	match any characters in the range a to c, e to g
[!abc]	match any characters not between the brackets
[!x–z]	match any characters not in the range x to z
.	strings starting with '.' must be explicitly matched
?(pattern-list)	match zero or one occurrence of any pattern
*(pattern-list)	match zero or more occurrences of any ...