xref: /freebsd/share/man/man7/ascii.7 (revision 6145586a6c74e99969d74384066ecaf6580a8015)

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.Dd January 4, 2025
.Dt ASCII 7
.Os
.Sh NAME
.Nm ascii
.Nd octal, hexadecimal, decimal and binary
.Tn ASCII
character sets
.Sh DESCRIPTION
The
.Nm octal
set:
.Bd -literal -offset left
000 NUL  001 SOH  002 STX  003 ETX  004 EOT  005 ENQ  006 ACK  007 BEL
010 BS   011 HT   012 LF   013 VT   014 FF   015 CR   016 SO   017 SI
020 DLE  021 DC1  022 DC2  023 DC3  024 DC4  025 NAK  026 SYN  027 ETB
030 CAN  031 EM   032 SUB  033 ESC  034 FS   035 GS   036 RS   037 US
040 SP   041  !   042  "   043  #   044  $   045  %   046  &   047  '
050  (   051  )   052  *   053  +   054  ,   055  -   056  .   057  /
060  0   061  1   062  2   063  3   064  4   065  5   066  6   067  7
070  8   071  9   072  :   073  ;   074  <   075  =   076  >   077  ?
100  @   101  A   102  B   103  C   104  D   105  E   106  F   107  G
110  H   111  I   112  J   113  K   114  L   115  M   116  N   117  O
120  P   121  Q   122  R   123  S   124  T   125  U   126  V   127  W
130  X   131  Y   132  Z   133  [   134  \e\   135  ]   136  ^   137  _
140  `   141  a   142  b   143  c   144  d   145  e   146  f   147  g
150  h   151  i   152  j   153  k   154  l   155  m   156  n   157  o
160  p   161  q   162  r   163  s   164  t   165  u   166  v   167  w
170  x   171  y   172  z   173  {   174  |   175  }   176  ~   177 DEL
.Ed
.Pp
The
.Nm hexadecimal
set:
.Bd -literal -offset left
00 NUL   01 SOH   02 STX   03 ETX   04 EOT   05 ENQ   06 ACK   07 BEL
08 BS    09 HT    0a LF    0b VT    0c FF    0d CR    0e SO    0f SI
10 DLE   11 DC1   12 DC2   13 DC3   14 DC4   15 NAK   16 SYN   17 ETB
18 CAN   19 EM    1a SUB   1b ESC   1c FS    1d GS    1e RS    1f US
20 SP    21  !    22  "    23  #    24  $    25  %    26  &    27  '
28  (    29  )    2a  *    2b  +    2c  ,    2d  -    2e  .    2f  /
30  0    31  1    32  2    33  3    34  4    35  5    36  6    37  7
38  8    39  9    3a  :    3b  ;    3c  <    3d  =    3e  >    3f  ?
40  @    41  A    42  B    43  C    44  D    45  E    46  F    47  G
48  H    49  I    4a  J    4b  K    4c  L    4d  M    4e  N    4f  O
50  P    51  Q    52  R    53  S    54  T    55  U    56  V    57  W
58  X    59  Y    5a  Z    5b  [    5c  \e\    5d  ]    5e  ^    5f  _
60  \`    61  a    62  b    63  c    64  d    65  e    66  f    67  g
68  h    69  i    6a  j    6b  k    6c  l    6d  m    6e  n    6f  o
70  p    71  q    72  r    73  s    74  t    75  u    76  v    77  w
78  x    79  y    7a  z    7b  {    7c  |    7d  }    7e  ~    7f DEL
.Ed
.Pp
The
.Nm decimal
set:
.Bd -literal -offset left
  0 NUL    1 SOH    2 STX    3 ETX    4 EOT    5 ENQ    6 ACK    7 BEL
  8 BS     9 HT    10 LF    11 VT    12 FF    13 CR    14 SO    15 SI
 16 DLE   17 DC1   18 DC2   19 DC3   20 DC4   21 NAK   22 SYN   23 ETB
 24 CAN   25 EM    26 SUB   27 ESC   28 FS    29 GS    30 RS    31 US
 32 SP    33  !    34  "    35  #    36  $    37  %    38  &    39  '
 40  (    41  )    42  *    43  +    44  ,    45  -    46  .    47  /
 48  0    49  1    50  2    51  3    52  4    53  5    54  6    55  7
 56  8    57  9    58  :    59  ;    60  <    61  =    62  >    63  ?
 64  @    65  A    66  B    67  C    68  D    69  E    70  F    71  G
 72  H    73  I    74  J    75  K    76  L    77  M    78  N    79  O
 80  P    81  Q    82  R    83  S    84  T    85  U    86  V    87  W
 88  X    89  Y    90  Z    91  [    92  \e\    93  ]    94  ^    95  _
 96  `    97  a    98  b    99  c   100  d   101  e   102  f   103  g
104  h   105  i   106  j   107  k   108  l   109  m   110  n   111  o
112  p   113  q   114  r   115  s   116  t   117  u   118  v   119  w
120  x   121  y   122  z   123  {   124  |   125  }   126  ~   127 DEL
.Ed
.Pp
The
.Nm binary
set:
.Bd -literal -offset left
 00     01     10     11

NUL     SP      @      `     00000
SOH      !      A      a     00001
STX      "      B      b     00010
ETX      #      C      c     00011
EOT      $      D      d     00100
ENQ      %      E      e     00101
ACK      &      F      f     00110
BEL      '      G      g     00111
 BS      (      H      h     01000
 HT      )      I      i     01001
 LF      *      J      j     01010
 VT      +      K      k     01011
 FF      ,      L      l     01100
 CR      -      M      m     01101
 SO      .      N      n     01110
 SI      /      O      o     01111
DLE      0      P      p     10000
DC1      1      Q      q     10001
DC2      2      R      r     10010
DC3      3      S      s     10011
DC4      4      T      t     10100
NAK      5      U      u     10101
SYN      6      V      v     10110
ETB      7      W      w     10111
CAN      8      X      x     11000
 EM      9      Y      y     11001
SUB      :      Z      z     11010
ESC      ;      [      {     11011
 FS      <      \e\      |     11100
 GS      =      ]      }     11101
 RS      >      ^      -     11110
 US      ?      _    DEL     11111
.Ed
.Pp
The full
.Nm names
of the control character set:
.Bd -literal -offset left
NUL      NULl
SOH      Start Of Heading
STX      Start Of Text
ETX      End Of Text
EOT      End Of Transmission
ENQ      ENQuiry
ACK      ACKnowledge
BEL      BELl
 BS      BackSpace
 HT      Horizontal Tab
 LF      Line Feed (new line)
 VT      Vertical Tab
 FF      new page Form Feed
 CR      Carriage Return
 SO      Shift Out
 SI      Shift In
DLE      Data Link Escape
DC1      Device Control 1
DC2      Device Control 2
DC3      Device Control 3
DC4      Device Control 4
NAK      Negative AcKnowledge
SYN      SYNchronous idle
ETB      End of Transmission Block
CAN      CANcel
 EM      End of Medium
SUB      SUBstitute
ESC      ESCape
 FS      File Separator
 GS      Group Separator
 RS      Record Separator
 US      Unit Separator
.Ed
.Sh FILES
.Bl -tag -width /usr/share/misc/ascii -compact
.It Pa /usr/share/misc/ascii
.El
.Sh STANDARDS
.Rs
.%T Information Systems - Coded Character Sets - 7-Bit American National\
 Standard Code for Information Interchange (7-Bit ASCII)
.%R INCITS 4-1986[R2017]
.%Q InterNational Committee for Information Technology Standards
.Re
.Sh HISTORY
An
.Nm
manual page appeared in
.At v1 .