For example:
"\e[1;5C"
"\e[Z"
"\e-1\C-i"I only know bits and pieces, like \e stands for escape and C- for Ctrl, but what are these numbers (1) and letters (Z)? What are the ;, [ and - signs for?
Is there only trial and error, or is there a complete list of bash key codes and an explanation of their syntax?
Those are sequences of characters sent by your terminal when you press a given key. Nothing to do with bash or readline per se, but you'll want to know what sequence of characters a given key or key combination sends if you want to configure readline to do something upon a given key press.
When you press the A key, generally terminals send the a (0x61) character. If you press <Ctrl-I> or <Tab>, then generally send the ^I character also known as TAB or \t (0x9). Most of the function and navigation keys generally send a sequence of characters that starts with the ^[ (control-[), also known as ESC or \e (0x1b, 033 octal), but the exact sequence varies from terminal to terminal.
The best way to find out what a key or key combination sends for your terminal, is run sed -n l and to type it followed by Enter on the keyboard. Then you'll see something like:
$ sed -n l
^[[1;5A
\033[1;5A$
The first line is caused by the local terminal echo done by the terminal device (it may not be reliable as terminal device settings would affect it).
The second line is output by sed. The $ is not to be included, it's only to show you where the end of the line is.
Above that means that Ctrl-Up (which I've pressed) send the 6 characters ESC, [, 1, ;, 5 and A (0x1b 0x5b 0x31 0x3b 0x35 0x41)
The terminfo database records a number of sequences for a number of common keys for a number of terminals (based on $TERM value).
For instance:
TERM=rxvt tput kdch1 | sed -n l
Would tell you what escape sequence is send by rxvt upon pressing the Delete key.
You can look up what key corresponds to a given sequence with your current terminal with infocmp (here assuming ncurses infocmp):
$ infocmp -L1 | grep -F '=\E[Z'
back_tab=\E[Z,
key_btab=\E[Z,
Key combinations like Ctrl-Up don't have corresponding entries in the terminfo database, so to find out what they send, either read the source or documentation for the corresponding terminal or try it out with the sed -n l method described above.
\e-1\C-i is a backwards tab, because control and i inserts a tab and escape followed by -1 says bash to do it backwards once (I goggled this and found some stuff about digit-arguments).
– bug
May 22 '13 at 10:03
hexdump -v -e '/1 " 0x%02x "' -e '/1 "%03o "' -e '/1 "%_u\n"' instead of sed -n l is nice. It adds a lfwhen used on keyboard input though (i.e. not pipe from tput).
– user367890
Jul 09 '16 at 23:49
tput / infocmp give different results then user input? For example when I do an arrow left I get \x1b [ D when reading input, but both infocmp and tput for kcub1, as in C-name key_left, gives \x1 O D … (TERM=xterm)
– user367890
Jul 10 '16 at 00:08
tput smkx, your terminal sends \e[OD (kcub1) and after tput rmkx, \e[D (cub1, the same code as the sequence that moves the cursor to the left, so that the echo of those keys does move the cursor. Try stty -echoctl; tput rmkx; sleep inf and you'll see the arrow keys do move the cursor when not in keypad mode).
– Stéphane Chazelas
Jul 15 '16 at 07:46
tput smkx and after that rely on the information in infocmp? As in; it says kcub1 is \EOD – and hence I can look for \EOD in input and rely on it being key_left? I have a somewhat nasty side project where I try to interpret this in pure bash, for the fun of it. Related: http://unix.stackexchange.com/a/294935/98945 – I have used curses in python and C earlier. This is for exploring. Guess most people say whhy though ... :P
– user367890
Jul 15 '16 at 18:37
GNU bash, version 4.4.19(1)-release (x86_64-apple-darwin16.6.0)), using both GNU sed and darwin's BSD sed - it returns the literal character.
– Ben Creasy
May 27 '18 at 16:27
It is provided via the GNU readline library. you should look into man 3 readline to find out its description.
Looks like you also need information about what escape codes like \[A mean. You can find this information in Wikipedia's ANSI escape code article.
\[A is in the table "CSI codes" within row: "CSI n A"
– rush
May 21 '13 at 13:44
The easiest way I've found to check what escape sequence is generated by a key or key combo is to press Ctrl+v in a terminal and then press the key/combo you want to know about.
You'll get a sequence like ^[Oa and you'll have to translate the ^[ into \e or \033 or \x1b or whatever other representation your keybinding system expects for the escape character.
It began as an Emacs function named quoted-insert and, since the default keybinds for Bash and Zsh mimic Emacs, they also copied it.
Bash gets it via the GNU Readline input library that other things like Python's import rlcompleter enhancement also use.
Here's the description from the Readline manual:
quoted-insert(C-qorC-v)Add the next character typed to the line verbatim. This is how to insert key sequences like
C-q, for example.
That should work in anything based on GNU Readline.
As for Zsh, which uses its own alternative named ZLE, it only honours the original Emacs C-q binding when in Vi mode, ironically enough, but C-v still works in the default Emacs-like input mode. (Search for quoted-insert in the zshzle or zshall manpages and the second pair of results should list default keybinds.)
For a mnemonic, I advise thinking of Ctrl+v as asking for it verbatim.
Do these codes come from the same source? The last one looks like a GNU readline binding. That's what the user sends to a bash (see rush's answer). The first two, however, look more like terminal control sequences (even though the first one would be an ill-formed one). That's what bash or another program send back to the terminal emulator in order to control cursor movements, text colors, and the like.
Ctrl+V only works for some characters (does not show Tab, Caps, volume keys, Print Screen, Home, End, Pause, Mute) C-v also does not allow for a revers translation or to put it another way, to view existing bindings and what keys they represent.
It does work for most keys characters, but your best bet is to use
dumpkey -1 >> mapreference
to get a full table of your keycode - the signal your specific keyboard sends for each key press. These keycodes are matched by your map file (on Arch: /usr/share/kbd/keymap/*/** folder) but dumpkeys is easier because all your mappings are stored in once place.
Next you'll need the translation tables depending on what format they key is in.
Octal
000 NUL 020 DLE 040 060 0 100 @ 120 P 140 ` 160 p
001 SOH 021 DC1 041 ! 061 1 101 A 121 Q 141 a 161 q
002 STX 022 DC2 042 " 062 2 102 B 122 R 142 b 162 r
003 ETX 023 DC3 043 # 063 3 103 C 123 S 143 c 163 s
004 EOT 024 DC4 044 $ 064 4 104 D 124 T 144 d 164 t
005 ENQ 025 NAK 045 % 065 5 105 E 125 U 145 e 165 u
006 ACK 026 SYN 046 & 066 6 106 F 126 V 146 f 166 v
007 BEL 027 ETB 047 ' 067 7 107 G 127 W 147 g 167 w
010 BS 030 CAN 050 ( 070 8 110 H 130 X 150 h 170 x
011 HT 031 EM 051 ) 071 9 111 I 131 Y 151 i 171 y
012 LF 032 SUB 052 * 072 : 112 J 132 Z 152 j 172 z
013 VT 033 ESC 053 + 073 ; 113 K 133 [ 153 k 173 {
014 FF 034 FS 054 , 074 < 114 L 134 \ 154 l 174 |
015 CR 035 GS 055 - 075 = 115 M 135 ] 155 m 175 }
016 SO 036 RS 056 . 076 > 116 N 136 ^ 156 n 176 ~
017 SI 037 US 057 / 077 ? 117 O 137 _ 157 o 177 DEL
Binary
0000000 NUL 0010000 DLE 0100000 0110000 0 1000000 @ 1010000 P 1100000 ` 1110000 p
0000001 SOH 0010001 DC1 0100001 ! 0110001 1 1000001 A 1010001 Q 1100001 a 1110001 q
0000010 STX 0010010 DC2 0100010 " 0110010 2 1000010 B 1010010 R 1100010 b 1110010 r
0000011 ETX 0010011 DC3 0100011 # 0110011 3 1000011 C 1010011 S 1100011 c 1110011 s
0000100 EOT 0010100 DC4 0100100 $ 0110100 4 1000100 D 1010100 T 1100100 d 1110100 t
0000101 ENQ 0010101 NAK 0100101 % 0110101 5 1000101 E 1010101 U 1100101 e 1110101 u
0000110 ACK 0010110 SYN 0100110 & 0110110 6 1000110 F 1010110 V 1100110 f 1110110 v
0000111 BEL 0010111 ETB 0100111 ' 0110111 7 1000111 G 1010111 W 1100111 g 1110111 w
0001000 BS 0011000 CAN 0101000 ( 0111000 8 1001000 H 1011000 X 1101000 h 1111000 x
0001001 HT 0011001 EM 0101001 ) 0111001 9 1001001 I 1011001 Y 1101001 i 1111001 y
0001010 LF 0011010 SUB 0101010 * 0111010 : 1001010 J 1011010 Z 1101010 j 1111010 z
0001011 VT 0011011 ESC 0101011 + 0111011 ; 1001011 K 1011011 [ 1101011 k 1111011 {
0001100 FF 0011100 FS 0101100 , 0111100 < 1001100 L 1011100 \ 1101100 l 1111100 |
0001101 CR 0011101 GS 0101101 - 0111101 = 1001101 M 1011101 ] 1101101 m 1111101 }
0001110 SO 0011110 RS 0101110 . 0111110 > 1001110 N 1011110 ^ 1101110 n 1111110 ~
0001111 SI 0011111 US 0101111 / 0111111 ? 1001111 O 1011111 _ 1101111 o 1111111 DEL
UTF-8
Unicode
Code Point Character UTF-8(hex) Name
U+0000 00 <control>
U+0001 01 <control>
U+0002 02 <control>
U+0003 03 <control>
U+0004 04 <control>
U+0005 05 <control>
U+0006 06 <control>
U+0007 07 <control>
U+0008 08 <control>
U+0009 09 <control>
U+000A 0a <control>
U+000B 0b <control>
U+000C 0c <control>
U+000D 0d <control>
U+000E 0e <control>
U+000F 0f <control>
U+0010 10 <control>
U+0011 11 <control>
U+0012 12 <control>
U+0013 13 <control>
U+0014 14 <control>
U+0015 15 <control>
U+0016 16 <control>
U+0017 17 <control>
U+0018 18 <control>
U+0019 19 <control>
U+001A 1a <control>
U+001B 1b <control>
U+001C 1c <control>
U+001D 1d <control>
U+001E 1e <control>
U+001F 1f <control>
U+0020 20 SPACE
U+0021 ! 21 EXCLAMATION MARK
U+0022 " 22 QUOTATION MARK
U+0023 # 23 NUMBER SIGN
U+0024 $ 24 DOLLAR SIGN
U+0025 % 25 PERCENT SIGN
U+0026 & 26 AMPERSAND
U+0027 ' 27 APOSTROPHE
U+0028 ( 28 LEFT PARENTHESIS
U+0029 ) 29 RIGHT PARENTHESIS
U+002A * 2a ASTERISK
U+002B + 2b PLUS SIGN
U+002C , 2c COMMA
U+002D - 2d HYPHEN-MINUS
U+002E . 2e FULL STOP
U+002F / 2f SOLIDUS
U+0030 0 30 DIGIT ZERO
U+0031 1 31 DIGIT ONE
U+0032 2 32 DIGIT TWO
U+0033 3 33 DIGIT THREE
U+0034 4 34 DIGIT FOUR
U+0035 5 35 DIGIT FIVE
U+0036 6 36 DIGIT SIX
U+0037 7 37 DIGIT SEVEN
U+0038 8 38 DIGIT EIGHT
U+0039 9 39 DIGIT NINE
U+003A : 3a COLON
U+003B ; 3b SEMICOLON
U+003C < 3c LESS-THAN SIGN
U+003D = 3d EQUALS SIGN
U+003E > 3e GREATER-THAN SIGN
U+003F ? 3f QUESTION MARK
U+0040 @ 40 COMMERCIAL AT
U+0041 A 41 LATIN CAPITAL LETTER A
U+0042 B 42 LATIN CAPITAL LETTER B
U+0043 C 43 LATIN CAPITAL LETTER C
U+0044 D 44 LATIN CAPITAL LETTER D
U+0045 E 45 LATIN CAPITAL LETTER E
U+0046 F 46 LATIN CAPITAL LETTER F
U+0047 G 47 LATIN CAPITAL LETTER G
U+0048 H 48 LATIN CAPITAL LETTER H
U+0049 I 49 LATIN CAPITAL LETTER I
U+004A J 4a LATIN CAPITAL LETTER J
U+004B K 4b LATIN CAPITAL LETTER K
U+004C L 4c LATIN CAPITAL LETTER L
U+004D M 4d LATIN CAPITAL LETTER M
U+004E N 4e LATIN CAPITAL LETTER N
U+004F O 4f LATIN CAPITAL LETTER O
U+0050 P 50 LATIN CAPITAL LETTER P
U+0051 Q 51 LATIN CAPITAL LETTER Q
U+0052 R 52 LATIN CAPITAL LETTER R
U+0053 S 53 LATIN CAPITAL LETTER S
U+0054 T 54 LATIN CAPITAL LETTER T
U+0055 U 55 LATIN CAPITAL LETTER U
U+0056 V 56 LATIN CAPITAL LETTER V
U+0057 W 57 LATIN CAPITAL LETTER W
U+0058 X 58 LATIN CAPITAL LETTER X
U+0059 Y 59 LATIN CAPITAL LETTER Y
U+005A Z 5a LATIN CAPITAL LETTER Z
U+005B [ 5b LEFT SQUARE BRACKET
U+005C \ 5c REVERSE SOLIDUS
U+005D ] 5d RIGHT SQUARE BRACKET
U+005E ^ 5e CIRCUMFLEX ACCENT
U+005F _ 5f LOW LINE
U+0060 ` 60 GRAVE ACCENT
U+0061 a 61 LATIN SMALL LETTER A
U+0062 b 62 LATIN SMALL LETTER B
U+0063 c 63 LATIN SMALL LETTER C
U+0064 d 64 LATIN SMALL LETTER D
U+0065 e 65 LATIN SMALL LETTER E
U+0066 f 66 LATIN SMALL LETTER F
U+0067 g 67 LATIN SMALL LETTER G
U+0068 h 68 LATIN SMALL LETTER H
U+0069 i 69 LATIN SMALL LETTER I
U+006A j 6a LATIN SMALL LETTER J
U+006B k 6b LATIN SMALL LETTER K
U+006C l 6c LATIN SMALL LETTER L
U+006D m 6d LATIN SMALL LETTER M
U+006E n 6e LATIN SMALL LETTER N
U+006F o 6f LATIN SMALL LETTER O
U+0070 p 70 LATIN SMALL LETTER P
U+0071 q 71 LATIN SMALL LETTER Q
U+0072 r 72 LATIN SMALL LETTER R
U+0073 s 73 LATIN SMALL LETTER S
U+0074 t 74 LATIN SMALL LETTER T
U+0075 u 75 LATIN SMALL LETTER U
U+0076 v 76 LATIN SMALL LETTER V
U+0077 w 77 LATIN SMALL LETTER W
U+0078 x 78 LATIN SMALL LETTER X
U+0079 y 79 LATIN SMALL LETTER Y
U+007A z 7a LATIN SMALL LETTER Z
U+007B { 7b LEFT CURLY BRACKET
U+007C | 7c VERTICAL LINE
U+007D } 7d RIGHT CURLY BRACKET
U+007E ~ 7e TILDE
U+007F 7f <control>
U+0080 c2 80 <control>
U+0081 c2 81 <control>
U+0082 c2 82 <control>
U+0083 c2 83 <control>
U+0084 c2 84 <control>
U+0085 c2 85 <control>
U+0086 c2 86 <control>
U+0087 c2 87 <control>
U+0088 c2 88 <control>
U+0089 c2 89 <control>
U+008A c2 8a <control>
U+008B c2 8b <control>
U+008C c2 8c <control>
U+008D c2 8d <control>
U+008E c2 8e <control>
U+008F c2 8f <control>
U+0090 c2 90 <control>
U+0091 c2 91 <control>
U+0092 c2 92 <control>
U+0093 c2 93 <control>
U+0094 c2 94 <control>
U+0095 c2 95 <control>
U+0096 c2 96 <control>
U+0097 c2 97 <control>
U+0098 c2 98 <control>
U+0099 c2 99 <control>
U+009A c2 9a <control>
U+009B c2 9b <control>
U+009C c2 9c <control>
U+009D c2 9d <control>
U+009E c2 9e <control>
U+009F c2 9f <control>
U+00A0 c2 a0 NO-BREAK SPACE
U+00A1 ¡ c2 a1 INVERTED EXCLAMATION MARK
U+00A2 ¢ c2 a2 CENT SIGN
U+00A3 £ c2 a3 POUND SIGN
U+00A4 ¤ c2 a4 CURRENCY SIGN
U+00A5 ¥ c2 a5 YEN SIGN
U+00A6 ¦ c2 a6 BROKEN BAR
U+00A7 § c2 a7 SECTION SIGN
U+00A8 ¨ c2 a8 DIAERESIS
U+00A9 © c2 a9 COPYRIGHT SIGN
U+00AA ª c2 aa FEMININE ORDINAL INDICATOR
U+00AB « c2 ab LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
U+00AC ¬ c2 ac NOT SIGN
U+00AD c2 ad SOFT HYPHEN
U+00AE ® c2 ae REGISTERED SIGN
U+00AF ¯ c2 af MACRON
U+00B0 ° c2 b0 DEGREE SIGN
U+00B1 ± c2 b1 PLUS-MINUS SIGN
U+00B2 ² c2 b2 SUPERSCRIPT TWO
U+00B3 ³ c2 b3 SUPERSCRIPT THREE
U+00B4 ´ c2 b4 ACUTE ACCENT
U+00B5 µ c2 b5 MICRO SIGN
U+00B6 ¶ c2 b6 PILCROW SIGN
U+00B7 · c2 b7 MIDDLE DOT
U+00B8 ¸ c2 b8 CEDILLA
U+00B9 ¹ c2 b9 SUPERSCRIPT ONE
U+00BA º c2 ba MASCULINE ORDINAL INDICATOR
U+00BB » c2 bb RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
U+00BC ¼ c2 bc VULGAR FRACTION ONE QUARTER
U+00BD ½ c2 bd VULGAR FRACTION ONE HALF
U+00BE ¾ c2 be VULGAR FRACTION THREE QUARTERS
U+00BF ¿ c2 bf INVERTED QUESTION MARK
U+00C0 À c3 80 LATIN CAPITAL LETTER A WITH GRAVE
U+00C1 Á c3 81 LATIN CAPITAL LETTER A WITH ACUTE
U+00C2 Â c3 82 LATIN CAPITAL LETTER A WITH CIRCUMFLEX
U+00C3 Ã c3 83 LATIN CAPITAL LETTER A WITH TILDE
U+00C4 Ä c3 84 LATIN CAPITAL LETTER A WITH DIAERESIS
U+00C5 Å c3 85 LATIN CAPITAL LETTER A WITH RING ABOVE
U+00C6 Æ c3 86 LATIN CAPITAL LETTER AE
U+00C7 Ç c3 87 LATIN CAPITAL LETTER C WITH CEDILLA
U+00C8 È c3 88 LATIN CAPITAL LETTER E WITH GRAVE
U+00C9 É c3 89 LATIN CAPITAL LETTER E WITH ACUTE
U+00CA Ê c3 8a LATIN CAPITAL LETTER E WITH CIRCUMFLEX
U+00CB Ë c3 8b LATIN CAPITAL LETTER E WITH DIAERESIS
U+00CC Ì c3 8c LATIN CAPITAL LETTER I WITH GRAVE
U+00CD Í c3 8d LATIN CAPITAL LETTER I WITH ACUTE
U+00CE Î c3 8e LATIN CAPITAL LETTER I WITH CIRCUMFLEX
U+00CF Ï c3 8f LATIN CAPITAL LETTER I WITH DIAERESIS
U+00D0 Ð c3 90 LATIN CAPITAL LETTER ETH
U+00D1 Ñ c3 91 LATIN CAPITAL LETTER N WITH TILDE
U+00D2 Ò c3 92 LATIN CAPITAL LETTER O WITH GRAVE
U+00D3 Ó c3 93 LATIN CAPITAL LETTER O WITH ACUTE
U+00D4 Ô c3 94 LATIN CAPITAL LETTER O WITH CIRCUMFLEX
U+00D5 Õ c3 95 LATIN CAPITAL LETTER O WITH TILDE
U+00D6 Ö c3 96 LATIN CAPITAL LETTER O WITH DIAERESIS
U+00D7 × c3 97 MULTIPLICATION SIGN
U+00D8 Ø c3 98 LATIN CAPITAL LETTER O WITH STROKE
U+00D9 Ù c3 99 LATIN CAPITAL LETTER U WITH GRAVE
U+00DA Ú c3 9a LATIN CAPITAL LETTER U WITH ACUTE
U+00DB Û c3 9b LATIN CAPITAL LETTER U WITH CIRCUMFLEX
U+00DC Ü c3 9c LATIN CAPITAL LETTER U WITH DIAERESIS
U+00DD Ý c3 9d LATIN CAPITAL LETTER Y WITH ACUTE
U+00DE Þ c3 9e LATIN CAPITAL LETTER THORN
U+00DF ß c3 9f LATIN SMALL LETTER SHARP S
U+00E0 à c3 a0 LATIN SMALL LETTER A WITH GRAVE
U+00E1 á c3 a1 LATIN SMALL LETTER A WITH ACUTE
U+00E2 â c3 a2 LATIN SMALL LETTER A WITH CIRCUMFLEX
U+00E3 ã c3 a3 LATIN SMALL LETTER A WITH TILDE
U+00E4 ä c3 a4 LATIN SMALL LETTER A WITH DIAERESIS
U+00E5 å c3 a5 LATIN SMALL LETTER A WITH RING ABOVE
U+00E6 æ c3 a6 LATIN SMALL LETTER AE
U+00E7 ç c3 a7 LATIN SMALL LETTER C WITH CEDILLA
U+00E8 è c3 a8 LATIN SMALL LETTER E WITH GRAVE
U+00E9 é c3 a9 LATIN SMALL LETTER E WITH ACUTE
U+00EA ê c3 aa LATIN SMALL LETTER E WITH CIRCUMFLEX
U+00EB ë c3 ab LATIN SMALL LETTER E WITH DIAERESIS
U+00EC ì c3 ac LATIN SMALL LETTER I WITH GRAVE
U+00ED í c3 ad LATIN SMALL LETTER I WITH ACUTE
U+00EE î c3 ae LATIN SMALL LETTER I WITH CIRCUMFLEX
U+00EF ï c3 af LATIN SMALL LETTER I WITH DIAERESIS
U+00F0 ð c3 b0 LATIN SMALL LETTER ETH
U+00F1 ñ c3 b1 LATIN SMALL LETTER N WITH TILDE
U+00F2 ò c3 b2 LATIN SMALL LETTER O WITH GRAVE
U+00F3 ó c3 b3 LATIN SMALL LETTER O WITH ACUTE
U+00F4 ô c3 b4 LATIN SMALL LETTER O WITH CIRCUMFLEX
U+00F5 õ c3 b5 LATIN SMALL LETTER O WITH TILDE
U+00F6 ö c3 b6 LATIN SMALL LETTER O WITH DIAERESIS
U+00F7 ÷ c3 b7 DIVISION SIGN
U+00F8 ø c3 b8 LATIN SMALL LETTER O WITH STROKE
U+00F9 ù c3 b9 LATIN SMALL LETTER U WITH GRAVE
U+00FA ú c3 ba LATIN SMALL LETTER U WITH ACUTE
U+00FB û c3 bb LATIN SMALL LETTER U WITH CIRCUMFLEX
U+00FC ü c3 bc LATIN SMALL LETTER U WITH DIAERESIS
U+00FD ý c3 bd LATIN SMALL LETTER Y WITH ACUTE
U+00FE þ c3 be LATIN SMALL LETTER THORN
U+00FF ÿ c3 bf LATIN SMALL LETTER Y WITH DIAERESIS
Decimal / Hex
Dec Hex Dec Hex Dec Hex Dec Hex Dec Hex Dec Hex Dec Hex Dec Hex
0 00 NUL 16 10 DLE 32 20 48 30 0 64 40 @ 80 50 P 96 60 ` 112 70 p
1 01 SOH 17 11 DC1 33 21 ! 49 31 1 65 41 A 81 51 Q 97 61 a 113 71 q
2 02 STX 18 12 DC2 34 22 " 50 32 2 66 42 B 82 52 R 98 62 b 114 72 r
3 03 ETX 19 13 DC3 35 23 # 51 33 3 67 43 C 83 53 S 99 63 c 115 73 s
4 04 EOT 20 14 DC4 36 24 $ 52 34 4 68 44 D 84 54 T 100 64 d 116 74 t
5 05 ENQ 21 15 NAK 37 25 % 53 35 5 69 45 E 85 55 U 101 65 e 117 75 u
6 06 ACK 22 16 SYN 38 26 & 54 36 6 70 46 F 86 56 V 102 66 f 118 76 v
7 07 BEL 23 17 ETB 39 27 ' 55 37 7 71 47 G 87 57 W 103 67 g 119 77 w
8 08 BS 24 18 CAN 40 28 ( 56 38 8 72 48 H 88 58 X 104 68 h 120 78 x
9 09 HT 25 19 EM 41 29 ) 57 39 9 73 49 I 89 59 Y 105 69 i 121 79 y
10 0A LF 26 1A SUB 42 2A * 58 3A : 74 4A J 90 5A Z 106 6A j 122 7A z
11 0B VT 27 1B ESC 43 2B + 59 3B ; 75 4B K 91 5B [ 107 6B k 123 7B {
12 0C FF 28 1C FS 44 2C , 60 3C < 76 4C L 92 5C \ 108 6C l 124 7C |
13 0D CR 29 1D GS 45 2D - 61 3D = 77 4D M 93 5D ] 109 6D m 125 7D }
14 0E SO 30 1E RS 46 2E . 62 3E > 78 4E N 94 5E ^ 110 6E n 126 7E ~
15 0F SI 31 1F US 47 2F / 63 3F ? 79 4F O 95 5F _ 111 6F o 127 7F DEL
As a note, the first 32 characters in each table are reserved control characters. Control characters are not printable characters. They are used to send commands to the PC.
Now if you want something fun but also helpful, this is an escape sequence injection script I'm working on. It uses fzf and ripgrep and fd-find (rust write-up of find) but based on your term. In prints out your term capabilities to the window and then lets you recursively search the term info man page for the command under the cursor (it goes name -> escape sequence in that order).
Select and hit Enter and it prints it to your command line in between quotes and after an echo -e " " but does not execute (just so you can review before I do something silly) .
#!/bin/bash !
fzfcmp () {
local term
local FZF_DEFAULT_COMMAND
FZF_DEFAULT_COMMAND="infocmp $TERM -1"
term="$(
infocmp "${_termchoice:-"$TERM"}" -1 | tr '=' '\n' | \
tr '\t' '' | \
sed 's/,$//' | fzf \
--preview='man terminfo | rg -C10 -e {q}' \
--preview-window='right:80:wrap' --phony \
--bind="f9:reload:changeterm"
unset _termchoice
)"
if test -n "$(rg -e 'echo' <<<"$READLINE_LINE")"; then
READLINE_LINE="${READLINE_LINE:0:$READLINE_POINT} $(awk -F= '{print $1}' <<<"${term:-''}"
| sed 's/,$//') ${READLINE_LINE:$READLINE_POINT}";
else
READLINE_LINE="$(echo 'echo -e' "${READLINE_LINE:0:$READLINE_POINT} $(awk -F= '{print $1}' <<<"${term:-''}"
| sed 's/,$//') ${READLINE_LINE:$READLINE_POINT}")"
fi
READLINE_POINT=$(( ${#term} + READLINE_POINT ))
unset term
}
termfilter () {
Fzvar="$@"
local Fzvar
query="$Fzvar:-"command rg {}"j
fd -uu . -t f --full-path /usr/share/terminfo -x rg --files-with-matches "${_query:-"${1:-"/E}"}"
}
fztin () {
if [[ -z "$1" ]]; then
Fvar="."; else
Fvar="$1"
fi
local query
_query "$@"
termfilter
| awk -F/ '{print $NF}'
| sort -u
| fzf --bind="alt-p:execute:echo $(infocmp {}) >> $HOME/tmp/{}.tmp"
--preview-window "right:85:wrap"
--preview="cnat; infocmp {} -l ";
}
changeterm () {
local _termchoice
eval "${_termchoice=+:$(fztin "$@")}" | fzfcmp
}
bind -x '"\et": fzfcmp'
#bind -x '"\em": changeterm '
The Alt+M function is still in progress but it will print all available terminals then once you select one it will switch to the other command so you can see which terminal has the command line escape sequence you are looking for.
bind -p. – May 21 '13 at 11:27