How to change size of split screen emacs windows?

Question

I have emacs split horizontally - on top I\'m editing Perl code, the bottom is the shell. By default emacs makes the two windows equal in size, but I\'d like the shell buffe

Answer 1

C-x ^ takes positive and negative numerical arguments. In particular, if you would like to shrink the window where your cursor currently is by four lines, you can press C-u -4 C-x ^.