diff --git a/README.md b/README.md
index f6b3079..d7ca8b7 100644
--- a/README.md
+++ b/README.md
@@ -31,3 +31,24 @@ useful library
 --------------
 
 * source /opt/debian-bash/lib/functions.sh
+
+bindkeys
+--------
+
+### by default
+
+* CTRL + C => stop program
+* CTRL + V => display bindkey
+* CTRL + Z => interrupt for background job (fg, bg)
+
+* SHIFT + CTRL + C => copy
+* SHIFT + CTRL + V => paste
+
+### customized
+
+* CTRL LEFT, RIGHT => move between words
+* CTRL DELETE, BACKSPACE => delete word
+* ALT DELETE, BACKSPACE => delete line from cursor
+* CTRL + SHIFT + / => undo
+
+