Regular Expressions

Regular expressions allow to match different expressions with a pattern. For example, the regular expression:

a
will match with any line that contains an `a' character at any position, like, for example,

	all is here.
anytime at all!
Over the sea
Regular expressions are a standard way of constructing the matching patterns. Regular expression building blocks are:

				
				
A


Last Modified: 01:17am , January 20, 1996