Title pretty much sums up the question. I am learning emacs and have all the basic commands mastered but I don't know how to achieve full text search yet
Emacs also offers a simple, or nonincremental, search. To use a more straightforward search, type C-s RETURN or select Search from the Search menu. Type the search string, press RETURN, and Emacs begins the search. Simply press C-s again to repeat the search.
Much better to use the multiple buffer feature of emacs. If you are editing the first file and want to start editing the second file, simply use the hot key C-x C-f or the menu selection File->Open File to start the second file. The second file is loaded into its own buffer.
Most buffers are created by visiting files, or by Emacs commands that want to display some text, but you can also create a buffer explicitly by typing C-x b bufname RET . This makes a new, empty buffer that is not visiting any file, and selects it for editing. Such buffers are used for making notes to yourself.
Commands in emacs are either control characters (hold down the <Ctrl> key while typing another character) or are prefixed by one of a set of reserved characters: <Esc> or <Ctrl>-X.
Use M-x multi-occur-in-matching-buffers
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You can give a blank for the regexp. Then the expression.
There are several good ways to do what you ask. This is a duplicate question. See:
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