A text editor is a program that manipulates plain text (ASCII). Most text editors are full screen editors (they display a full screen of text) as opposed to line editors (which display one line at a time). Emacs is a full screen text editor supported by RUCS. On RUCS UNIX machines the default version of Emacs is the GNU release of Emacs. There are a couple of different UNIX text editors available for use in creating and editing files. These UNIX text editors are applications that can be run either in a telnet session or an X-windows session. The three most popular UNIX text editors here at Rutgers are Emacs, Pico, and VI. Using these UNIX text editors allows you to program in any computer language and translate it into code that the computer will be able to read and execute.
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This document contains a summary of useful GNU Emacs commands. Invoking Emacs To invoke the Emacs editor use the command:
% emacs [filename] e.g. % emacs test.file The following screen will then be displayed. If you are editing an existing file, the first 20 lines or so will be diplayed. == Emacs ================================= A status line is displayed near the bottom of the screen. Beneath the status line is the command line which is used to input information, such as the file name when you are reading a file. Emacs Commands Emacs employs commands which are executed by typing one or two keys.
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The unix operating system consist of three parts: the kernel, the shell and the programs. The kernel is the heart of Unix, it allocates time and memory, handles file operations and system calls. The shell acts as an interface between the user and the kernel. The shell is what you are typing to at the Unix prompt after you log in. Basic Unix Knowledge o Login o Find out default shell, change to tcsh ! chsh, /bin/tcsh o SecureCRT, Cygwin ssh ! Connect to bluepig.brynmawr.edu o man (RTFM) ! man
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Installation: Emacs comes preinstalled with Linux/UNIX For OS X: * Could use the non-gui version of Emacs which comes preinstalled * Could also buy the gui version from: http://www.mindlube.com/products/emacs/ * Could also try your luck with the panther version of Emacs from: http://www.webweavertech.com/ovidiu/emacs.html * For brave hearts: try out directions from: http://members.shaw.ca/akochoi-emacs/stories/obtaining-and-building.html For Windows: * Download Emacs i.e. the ?le emacs-21.3-fullbin-i386.tar.gz from http://ftp.gnu.org/pub/gnu/emacs/windows/: * Now unzip the ?le and you would be good to go! Some Emacs notation: Commands designated by C-¡letter¿ are called Control commands.
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This document is intended to provide you with the basic information you need to use the emacs text editor from your WAM/Glue or OIT cluster UNIX account. This document assumes that you are using your account from some kind of terminal window either by dialing in from home, by using a Mac or a PC in a computer lab or office at the University, or by using a terminal window generated by the xterm program on a Sun Ultra workstation. Information on how to connect to the OIT host computers with a terminal program is available on-line at http://www.helpdesk.umd.edu/topics/applications/terminal.
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14 Feb
Posted by jj as Programming, Web
Emacs (pronounced ee-max) started off in 1976 as a series of editor macros (hence its name) written by Richard Matthew Stallman for the TECO text editor on the DEC PDP-10 minicomputer. Since becoming its own program separate from TECO, it has become extremely popular and widely used for two main reasons: first, free versions of Emacs are available for nearly every computer in existence; second, it’s completely customizable. Many text editors and word processors claim to be completely customizable. Some let you reassign each key’s purpose, and they let you assign a series of operations to be performed by one or two keystrokes or menu choices.
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Introduction On a very basic level, Emacs is a text editor. However it is much more versatile than other less sophisticated editors in the UNIX environment, such as for example pico. More specifically, Emacs can work together with other applications, such as TEX, L TEX, and S-Plus, to provide a sort of graphical A user interface. We will get an example of this when we begin to use ESS (Emacs Speaks Statistics) and LTEX. A Dot Emacs Files These files make your life a lot easier. By color coding the syntax (for example in TEX?les), it is easy to see if youve made a syntax error, because it wont look right.
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What does this tutorial cover? This tutorial gives you a guide to the basics of using Emacs, a popular modeless text editor with many powerful features. The tutorial covers fundamental concepts and common activities, and then builds on those foundations to quickly familiarize you with this excellent editor. Getting started with Emacs requires navigating a steep learning curve.
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