Have you ever wanted to spell jalapeño correctly but don't know how? Maybe you'd like to spell dæmon a little differently? What you want is the Compose Key!

The right hand meta key is often set as the Compose key. The meta keys often have a "Windows" logo on PC keyboards. UNIX system keyboards (e.g. Fujitsu Happy Hacking Keyboard) have a diamond symbol on the meta keys. Sun Type 5 keyboards also have a separate Compose key to the right of the right meta key. Compose works with all X11 applications.

MacOS X uses the right Alt/Option key as its Compose key for X11 applications. Non-X11 applications use dead key combinations unique to MacOS X and its predecessor NeXT. (See: Apple Technical Note 2056)

Output	Keys	Description
#	++	number sign
[	((	left bracket
]	))	right bracket
}	)-	left brace
{	-(	right brace
«	<<	left guillemot
»	>>	right guillemot
|	vl	vertical line "bar"
¸	,,	cedilla
¨	""	diaeresis
¡	!!	inverted exclamation point
¿	??	inverted question mark
¢	c/	US cents
£	l-	UK pounds sterling
¥	y=	Japanese Yen
¤	xo	currency
§	s!	section
¶	p!	paragraph
©	CO	copyright
®	RO	registered trademark
		non-breaking space (space space)
·	.^	middle dot, centered period
±	+-	plus-minus
¬	-,	not sign
­	--	minus/hyphen
÷	-:	division
×	xx	multiplication
¹	^1	1 superior
²	^2	2 superior
³	^3	3 superior
°	0^	degrees
µ	/u	mu (Greek letter, Micro, 10^-6)
¯	-^	macron
ª	a_	feminine ordinal
º	o_	masculine ordinal
ç	c,	c cedilla
Ç	C,	C cedilla
đ	d-	lower case eth
Đ	D-	upper case eth
ß	ss	sharp s
þ	th	lower case thorn
Þ	TH	upper case thorn
œ	oe	oe
Œ	OE	OE
æ	ae	ae
Æ	AE	AE
ø	o/	o oblique
Ø	O/	O oblique
à	a`	a grave
À	A`	A grave
ò	o`	o grave
Ò	O`	O grave
è	e`	e grave
È	E`	E grave
ù	u`	u grave
Ù	U`	U grave
ì	i`	i grave
Ì	I`	I grave
á	a'	a acute
Á	A'	A acute
ó	o'	o acute
Ó	O'	O acute
é	e'	e acute
É	E'	E acute
ú	u'	u acute
Ú	U'	U acute
í	i'	i acute
Í	I'	I acute
ý	y'	y acute
Ý	Y'	Y acute
â	a^	a circumflex
Â	A^	A circumflex
ô	o^	o circumflex
Ô	O^	O circumflex
ê	e^	e circumflex
Ê	E^	E circumflex
û	u^	u circumflex
Û	U^	U circumflex
î	i^	i circumflex
Î	I^	I circumflex
ã	a~	a tilde
Ã	A~	A tilde
õ	o~	o tilde
Õ	O~	O tilde
ũ	u~	u tilde
Ũ	U~	U tilde
ñ	n~	n tilde
Ñ	N~	N tilde
ä	a"	a diaeresis
Ä	A"	A diaeresis
ö	o"	o diaeresis
Ö	O"	O diaeresis
ë	e"	e diaeresis
Ë	E"	E diaeresis
ü	u"	u diaeresis
Ü	U"	U diaeresis
ï	i"	i diaeresis
Ï	I"	I diaeresis
ÿ	y"	y diaeresis
Ÿ	Y"	Y diaeresis
å	a*	a ring
Å	A*	A ring
ů	u*	u ring
Ů	U*	U ring

Labels: linux, unix, x11, xorg