bind
1 bind [-m keymap] [-lpsvPSV] 2 bind [-m keymap] [-q function] [-u function] [-r keyseq] 3 bind [-m keymap] -f filename 4 bind [-m keymap] -x keyseq:shell-command 5 bind [-m keymap] keyseq:function-name 6 bind readline-command 7 Display current readline key and function bindings, bind a key 8 sequence to a readline function or macro, or set a readline 9 variable. Each non-option argument is a command as it would 10 appear in .inputrc, but each binding or command must be passed 11 as a separate argument; e.g., '"\C-x\C-r": re-read-init-file'. 12 Options, if supplied, have the following meanings: 13 -m keymap 14 Use keymap as the keymap to be affected by the subsequent 15 bindings. Acceptable keymap names are emacs, 16 emacs-standard, emacs-meta, emacs-ctlx, vi, vi-move, 17 vi-command, and vi-insert. vi is equivalent to vi-com‐ 18 mand; emacs is equivalent to emacs-standard. 19 -l List the names of all readline functions. 20 -p Display readline function names and bindings in such a 21 way that they can be re-read. 22 -P List current readline function names and bindings. 23 -s Display readline key sequences bound to macros and the 24 strings they output in such a way that they can be re- 25 read. 26 -S Display readline key sequences bound to macros and the 27 strings they output. 28 -v Display readline variable names and values in such a way 29 that they can be re-read. 30 -V List current readline variable names and values. 31 -f filename 32 Read key bindings from filename. 33 -q function 34 Query about which keys invoke the named function. 35 -u function 36 Unbind all keys bound to the named function. 37 -r keyseq 38 Remove any current binding for keyseq. 39 -x keyseq:shell-command 40 Cause shell-command to be executed whenever keyseq is 41 entered. When shell-command is executed, the shell sets 42 the READLINE_LINE variable to the contents of the rea‐ 43 line line buffer and the READLINE_POINT variable to the 44 current location of the insertion point. If the executed 45 command changes the value of READLINE_LINE or REA‐ 46 LINE_POINT, those new values will be reflected in the 47 editing state. 48 49 The return value is 0 unless an unrecognized option is given or 50 an error occurred.
其中keyseq可以使用showkey -a命令来获取，如：
$ showkey -a Press any keys - Ctrl-D will terminate this program ^[[A 27 0033 0x1b "上 91 0133 0x5b 65 0101 0x41 ^[[B 27 0033 0x1b "下 91 0133 0x5b 66 0102 0x42 ^[[C 27 0033 0x1b "左 91 0133 0x5b 67 0103 0x43 ^[[D 27 0033 0x1b "右 91 0133 0x5b 68 0104 0x44 ^[[1~ 27 0033 0x1b "Home 91 0133 0x5b 49 0061 0x31 126 0176 0x7e ^[[2~ 27 0033 0x1b "Insert 91 0133 0x5b 50 0062 0x32 126 0176 0x7e ^[[3~ 27 0033 0x1b "Delete 91 0133 0x5b 51 0063 0x33 126 0176 0x7e ^[[4~ 27 0033 0x1b "End 91 0133 0x5b 52 0064 0x34 126 0176 0x7e ^[[5~ 27 0033 0x1b "PgUp 91 0133 0x5b 53 0065 0x35 126 0176 0x7e ^[[6~ 27 0033 0x1b "PgDn 91 0133 0x5b 54 0066 0x36 126 0176 0x7e ^H 8 0010 0x08 "Backspcae ^M 13 0015 0x0d "Enter 9 0011 0x09 "Tab
32 0040 0x20 "Blankspace
^[ 27 0033 0x1b "Esc ^[OP 27 0033 0x1b "F1 79 0117 0x4f 80 0120 0x50 ^[OQ 27 0033 0x1b "F2 79 0117 0x4f 81 0121 0x51 ^[OR 27 0033 0x1b "F3 79 0117 0x4f 82 0122 0x52 ^[OS 27 0033 0x1b "F4 79 0117 0x4f 83 0123 0x53 ^[[15~ 27 0033 0x1b "F5 91 0133 0x5b 49 0061 0x31 53 0065 0x35 126 0176 0x7e ^[[17~ 27 0033 0x1b "F6 91 0133 0x5b 49 0061 0x31 55 0067 0x37 126 0176 0x7e ^[[18~ 27 0033 0x1b "F7 91 0133 0x5b 49 0061 0x31 56 0070 0x38 126 0176 0x7e ^[[19~ 27 0033 0x1b "F8 91 0133 0x5b 49 0061 0x31 57 0071 0x39 126 0176 0x7e ^[[20~ 27 0033 0x1b "F9 91 0133 0x5b 50 0062 0x32 48 0060 0x30 126 0176 0x7e ^[[21~ 27 0033 0x1b "F10 91 0133 0x5b 50 0062 0x32 49 0061 0x31 126 0176 0x7e ^[[23~ 27 0033 0x1b "F11 91 0133 0x5b 50 0062 0x32 51 0063 0x33 126 0176 0x7e ^[[24~ 27 0033 0x1b "F12 91 0133 0x5b 50 0062 0x32 52 0064 0x34 126 0176 0x7e ^D 4 0004 0x04 "Ctrl+d