Add LInux Cheatsheet

cheat/linux.md

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+# How to show and change a key binding
+
+## key bindings
+* Press `CTRL + V`
+* Type the key for which you want to change the binding
+* The prompt will display the character sequence produced by that key. 
+e.g : if after step 1 you press F12, you can get something like `^[[24~` 
+(More info : [In bash, how do I bind a function key to a command?](https://stackoverflow.com/a/4201274/2309958) and [Delete keymap and completely disable key in zsh](https://unix.stackexchange.com/a/320432/220566) )
+
+## create a binding : 
+* `bind '"\e[24~":"~"'`
+* `bind '"\e[24~":""'`
+* `bind '"\e[24~":"who"'`
+* `bind '"\e[24~":"ssh hostname\n"'`
+
+## remove a binding : 
+* `bind -x '"\e[24~":""'`