Emacs: Find Replace and Change Letter Case

Problem

make each line start with capital letter.

change

some thing in the water
does not compute

to

Some thing in the water
Does not compute

Solution

Alt+x query-replace-regexp

type Ctrl+q Ctrl+j to insert a linefeed.

• Emacs: Insert Tab or Newline

type

\([a-z]\) Return

in the replace prompt, type

\,(concat "\n" (upcase \1))

or use downcase