Emacs Gems

gistfile1.txt

Repeating commands

This package defines a command that repeats the preceding command, whatever that was, including its arguments, whatever they were. This command is connected to the key C-x z. To repeat the previous command once, type C-x z. To repeat it a second time immediately after, type just z. By typing z again and again, you can repeat the command over and over.

http://stackoverflow.com/questions/6156286/emacs-lisp-call-function-with-prefix-argument-programmatically

Repeat Yank command

C-a C-k C-x ( C-y C-j C-x ) C-u 9 C-x e

Explanation:-

C-a : Go to start of line
C-k : Kill line
C-x ( : Start recording keyboard macro
C-y : Yank killed line
C-j : Move to next line
C-x ) : Stop recording keyboard macro
C-u 9 : Repeat 9 times
C-x e : Execute keyboard macro

To delete all whitespaces until next non-whitepspace

M-^ runs the command delete-indentation, which is an interactive compiled Lisp function in `simple.el'.

It is bound to M-^.

(delete-indentation &optional arg)