Regular Expression Quick Reference

From WikiBabulu

Different programs and their codes for regexps

Program	+	( )	|	{ }	[ ]	^
sed	\+	\( \)	\|	{ }	[ ]	^
grep		( )?	\|
perl	+	( )	|		[ ]	^
vim	\+	\( \)			[ ]	^

Character classees.

Program

Letters

Letters and numbers

Numbers

Whitespace

Space or tab

Control

Printing character

Lowercase

Uppercase

Graphic

Punctuation

Hex Digit

sed

[:alpha:]

[:alnum:]

[:digit:]

[:space:]

[:blank:]

[:cntrl:]

[:print:]

[:lower:]

[:upper:]

[:graph:]

[:punct:]

[:xdigit:]

grep

perl