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ASCII(7)		   Linux Programmer's Manual		      ASCII(7)

NAME
       ascii - ASCII character set encoded in octal, decimal, and hexadecimal

DESCRIPTION
       ASCII is the American Standard Code for Information Interchange.	 It is
       a 7-bit code.  Many 8-bit codes (such as ISO 8859-1, the Linux  default
       character  set)	contain	 ASCII as their lower half.  The international
       counterpart of ASCII is known as ISO 646.

       The following table contains the 128 ASCII characters.

       C program '\X' escapes are noted.

       Oct   Dec   Hex	 Char			     Oct   Dec	 Hex   Char
       ────────────────────────────────────────────────────────────────────────
       000   0	   00	 NUL '\0'		     100   64	 40    @
       001   1	   01	 SOH (start of heading)	     101   65	 41    A
       002   2	   02	 STX (start of text)	     102   66	 42    B
       003   3	   03	 ETX (end of text)	     103   67	 43    C
       004   4	   04	 EOT (end of transmission)   104   68	 44    D
       005   5	   05	 ENQ (enquiry)		     105   69	 45    E
       006   6	   06	 ACK (acknowledge)	     106   70	 46    F
       007   7	   07	 BEL '\a' (bell)	     107   71	 47    G
       010   8	   08	 BS  '\b' (backspace)	     110   72	 48    H
       011   9	   09	 HT  '\t' (horizontal tab)   111   73	 49    I
       012   10	   0A	 LF  '\n' (new line)	     112   74	 4A    J
       013   11	   0B	 VT  '\v' (vertical tab)     113   75	 4B    K
       014   12	   0C	 FF  '\f' (form feed)	     114   76	 4C    L
       015   13	   0D	 CR  '\r' (carriage ret)     115   77	 4D    M
       016   14	   0E	 SO  (shift out)	     116   78	 4E    N
       017   15	   0F	 SI  (shift in)		     117   79	 4F    O
       020   16	   10	 DLE (data link escape)	     120   80	 50    P
       021   17	   11	 DC1 (device control 1)	     121   81	 51    Q
       022   18	   12	 DC2 (device control 2)	     122   82	 52    R
       023   19	   13	 DC3 (device control 3)	     123   83	 53    S
       024   20	   14	 DC4 (device control 4)	     124   84	 54    T
       025   21	   15	 NAK (negative ack.)	     125   85	 55    U
       026   22	   16	 SYN (synchronous idle)	     126   86	 56    V
       027   23	   17	 ETB (end of trans. blk)     127   87	 57    W
       030   24	   18	 CAN (cancel)		     130   88	 58    X
       031   25	   19	 EM  (end of medium)	     131   89	 59    Y
       032   26	   1A	 SUB (substitute)	     132   90	 5A    Z
       033   27	   1B	 ESC (escape)		     133   91	 5B    [
       034   28	   1C	 FS  (file separator)	     134   92	 5C    \  '\\'
       035   29	   1D	 GS  (group separator)	     135   93	 5D    ]
       036   30	   1E	 RS  (record separator)	     136   94	 5E    ^
       037   31	   1F	 US  (unit separator)	     137   95	 5F    _
       040   32	   20	 SPACE			     140   96	 60    `
       041   33	   21	 !			     141   97	 61    a
       042   34	   22	 "			     142   98	 62    b
       043   35	   23	 #			     143   99	 63    c
       044   36	   24	 $			     144   100	 64    d
       045   37	   25	 %			     145   101	 65    e
       046   38	   26	 &			     146   102	 66    f
       047   39	   27	 ´			     147   103	 67    g
       050   40	   28	 (			     150   104	 68    h
       051   41	   29	 )			     151   105	 69    i
       052   42	   2A	 *			     152   106	 6A    j
       053   43	   2B	 +			     153   107	 6B    k
       054   44	   2C	 ,			     154   108	 6C    l
       055   45	   2D	 -			     155   109	 6D    m

       056   46	   2E	 .			     156   110	 6E    n
       057   47	   2F	 /			     157   111	 6F    o
       060   48	   30	 0			     160   112	 70    p
       061   49	   31	 1			     161   113	 71    q
       062   50	   32	 2			     162   114	 72    r
       063   51	   33	 3			     163   115	 73    s
       064   52	   34	 4			     164   116	 74    t
       065   53	   35	 5			     165   117	 75    u
       066   54	   36	 6			     166   118	 76    v
       067   55	   37	 7			     167   119	 77    w
       070   56	   38	 8			     170   120	 78    x
       071   57	   39	 9			     171   121	 79    y
       072   58	   3A	 :			     172   122	 7A    z
       073   59	   3B	 ;			     173   123	 7B    {
       074   60	   3C	 <			     174   124	 7C    |
       075   61	   3D	 =			     175   125	 7D    }
       076   62	   3E	 >			     176   126	 7E    ~
       077   63	   3F	 ?			     177   127	 7F    DEL

   Tables
       For convenience, let us give more compact tables in hex and decimal.

	  2 3 4 5 6 7	    30 40 50 60 70 80 90 100 110 120
	-------------	   ---------------------------------
       0:   0 @ P ` p	  0:	(  2  <	 F  P  Z  d   n	  x
       1: ! 1 A Q a q	  1:	)  3  =	 G  Q  [  e   o	  y
       2: " 2 B R b r	  2:	*  4  >	 H  R  \  f   p	  z
       3: # 3 C S c s	  3: !	+  5  ?	 I  S  ]  g   q	  {
       4: $ 4 D T d t	  4: "	,  6  @	 J  T  ^  h   r	  |
       5: % 5 E U e u	  5: #	-  7  A	 K  U  _  i   s	  }
       6: & 6 F V f v	  6: $	.  8  B	 L  V  `  j   t	  ~
       7: ´ 7 G W g w	  7: %	/  9  C	 M  W  a  k   u	 DEL
       8: ( 8 H X h x	  8: &	0  :  D	 N  X  b  l   v
       9: ) 9 I Y i y	  9: ´	1  ;  E	 O  Y  c  m   w
       A: * : J Z j z
       B: + ; K [ k {
       C: , < L \ l |
       D: - = M ] m }
       E: . > N ^ n ~
       F: / ? O _ o DEL

NOTES
   History
       An ascii manual page appeared in Version 7 of AT&T UNIX.

       On older terminals, the underscore code is displayed as a  left	arrow,
       called  backarrow, the caret is displayed as an up-arrow and the verti‐
       cal bar has a hole in the middle.

       Uppercase and lowercase characters differ by just one bit and the ASCII
       character  2  differs from the double quote by just one bit, too.  That
       made it much easier to encode characters mechanically or	 with  a  non-
       microcontroller-based electronic keyboard and that pairing was found on
       old teletypes.

       The ASCII standard was published by the United States of America	 Stan‐
       dards Institute (USASI) in 1968.

SEE ALSO
       iso_8859-1(7), iso_8859-10(7), iso_8859-13(7), iso_8859-14(7),
       iso_8859-15(7), iso_8859-16(7), iso_8859-2(7), iso_8859-3(7),
       iso_8859-4(7), iso_8859-5(7), iso_8859-6(7), iso_8859-7(7),
       iso_8859-8(7), iso_8859-9(7)

COLOPHON
       This page is part of release 3.54 of the Linux man-pages project.  A
       description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

Linux				  2009-02-12			      ASCII(7)
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