Regex Syntax

Regex Syntax:

 

a|b	Matches a or b
gr(a|e)y	Matches gray or grey
.	Matches any single character
[abc]	Matches a single character a, b or c
[^abc]	Matches any single character except a, b or c
[a-z]	Matches a single charactor in the range a to z
[a-zA-Z]	Matches a single charactor in the range a to z or A to Z
^	Matches the start of the filename
$	Matches the end of the filename
*	Matches the preceding element zero or more times
?	Matches the preceding element zero or one times
+	Matches the preceding element one or more times
{x}	Matches the preceding element x times
{x,}	Matches the preceding element x or more times
{x,y}	Matches the preceding element between x and y times

 

From: Everything's help