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Such key combinations are denoted C-x ( Control- x) or M-x ( Meta- x). But we will not do that.Įmacs uses many key combinations involving the Control and Meta keys. This buffer runs in Lisp Interaction mode, which means that you can interactively type and evaluate expressions in the Emacs Lisp programming language. There are many “special” buffers that do not correspond to loaded files.
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There are modes for many programming languages that support special features like syntax highlighting, auto-indentation, and other extra language-specific commands. The most basic mode is Fundamental, which provides only the most basic Emacs editing features. The rest of the status flag indicates other information about file permissions, etc., that you are unlikely to encounter in this course. The status flag shows whether the file has been changed (shows U:**-) or remains unchanged (shows U:-).The mode line displays information about the buffer displayed in the current window.The cursor is a rectangular block also called the point.A buffer is a logical “text thing” that you are working on, typically the contents of a file. Emacs is showing the contents of a buffer within a window (or frame).Labeled Emacs interface, shown running in a wx appliance. Type Control-c to kill Emacs, then run it again with the no-window option: emacs -nw. (Do not use & here, as it will hide Emacs from you.) You will not be able to interact with Emacs using the mouse, so learn those key bindings well! If Emacs is not visible (and the command prompt does not return), Emacs may have started on a GUI display where you are also logged in on the same computer. If you are working with a command line interface with no option to start GUI application, start Emacs directly in the terminal with emacs. The & tells the command line to open Emacs in the background and immediately return control of the terminal to you. If you are working with a graphical user interface, start Emacs by clicking its icon or by running emacs & at the command line. It is also possible to install in most other environments. Buttons and menus in the graphical version help when you are lost, but learn the key bindings (keyboard shortcuts) to find the true source of power.Įmacs is installed in the CS 240 computing environments. The first differences you will notice are the keyboard shortcuts and the interface. Emacs is different than other text editors in many ways.
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