American Standard Code for Information Interchange (ASCII)

Control characters
-------------------------------------------------------------
^@ NUL '\0' null character   ^P DLE data link escape
^A SOH start of heading      ^Q DC1 device control 1
^B STX start of text         ^R DC2 device control 2
^C ETX end of text           ^S DC3 device control 3
^D EOT end of transmission   ^T DC4 device control 4
^E ENQ enquiry               ^U NAK negative acknowledge
^F ACK acknowledge           ^V SYN synchronous idle
^G BEL '\a' bell             ^W ETB end of transmission block
^H BS  '\b' backspace        ^X CAN cancel
^I HT  '\t' horizontal tab   ^Y EM  end of medium
^J LF  '\n' new line         ^Z SUB substitute
^K VT  '\v' vertical tab     ^[ ESC escape
^L FF  '\f' form feed        ^\ FS  file separator
^M CR  '\r' carriage return  ^] GS  group separator
^N SO  shift out             ^^ RS  record separator
^O SI  shift in              ^_ US  unit separator

Octal byte values for 7-bit ASCII
----------------------------------
    0   1   2   3   4   5   6   7
 0 NUL SOH STX ETX EOT ENQ ACK BEL
 1  BS  HT  LF  VT  FF  CR  SO  SI
 2 DLE DC1 DC2 DC3 DC4 NAK SYN ETB
 3 CAN  EM SUB ESC  FS  GS  RS  US
 4 SPC  !   "   #   $   %   &   '
 5  (   )   *   +   ,   -   .   /
 6  0   1   2   3   4   5   6   7
 7  8   9   :   ;   <   =   >   ?
10  @   A   B   C   D   E   F   G
11  H   I   J   K   L   M   N   O
12  P   Q   R   S   T   U   V   W
13  X   Y   Z   [   \   ]   ^   _
14  `   a   b   c   d   e   f   g
15  h   i   j   k   l   m   n   o
16  p   q   r   s   t   u   v   w
17  x   y   z   {   |   }   ~  DEL

Hexadecimal byte values for 7-bit ASCII
--------------------------------------------------------------
    0   1   2   3   4   5   6   7   8   9   a   b  c  d  e  f
 0 NUL SOH STX ETX EOT ENQ ACK BEL  BS  HT  LF  VT FF CR SO SI
 1 DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN  EM SUB ESC FS GS RS US
 2 SPC  !   "   #   $   %   &   '   (   )   *   +  ,  -  .  /
 3  0   1   2   3   4   5   6   7   8   9   :   ;  <  =  >  ?
 4  @   A   B   C   D   E   F   G   H   I   J   K  L  M  N  O
 5  P   Q   R   S   T   U   V   W   X   Y   Z   [  \  ]  ^  _
 6  `   a   b   c   d   e   f   g   h   i   j   k  l  m  n  o
 7  p   q   r   s   t   u   v   w   x   y   z   {  |  }  ~ DEL

Decimal byte values for 7-bit ASCII
------------------------------------------
    0   1   2   3   4   5   6   7   8   9
 0 NUL SOH STX ETX EOT ENQ ACK BEL  BS  HT
 1  LF  VT  FF  CR  SO  SI DLE DC1 DC2 DC3
 2 DC4 NAK SYN ETB CAN  EM SUB ESC  FS  GS
 3  RS  US SPC  !   "   #   $   %   &   '
 4  (   )   *   +   ,   -   .   /   0   1
 5  2   3   4   5   6   7   8   9   :   ;
 6  <   =   >   ?   @   A   B   C   D   E
 7  F   G   H   I   J   K   L   M   N   O
 8  P   Q   R   S   T   U   V   W   X   Y
 9  Z   [   \   ]   ^   _   `   a   b   c
10  d   e   f   g   h   i   j   k   l   m
11  n   o   p   q   r   s   t   u   v   w
12  x   y   z   {   |   }   ~  DEL