By Byrd J.
This instructional contains fourteen sections, each one of which addresses a basic point of UNIX computing. It concentrates on illustrating the imperative options by means of offering brief reasons, in addition to examples, and workouts.
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Extra resources for A Basic UNIX Tutorial
TERM The TERM environment variable defines the type of terminal that you are using. Most Unix systems have a database of terminal types, and the capabilities of each terminal type. PATH The PATH variable contains the names of directories to be searched for programs that correspond to command names. When you issue a command to the shell, the shell searches sequentially through each directory in the PATH list until it finds an executable program with the command name you typed. USER The USER variable contains your username.
Section 10: Editing Text with EMACS One of the most basic operations you will need to perform on a Unix system is text editing. Whether you are preparing a document, writing a program, or sending email to a colleague, you will need a utility to allow you to enter and edit text. There are many editors available for Unix systems, but this discussion will focus on the emacs text editing program because of its power, flexibility, extensibility, customizability, and prevalence. No matter where you get a Unix account, you are likely to have emacs at your disposal.
Login. Important environment variables Here are descriptions of some of the most important environment variables, and examples of how some variables can affect the execution of commands. TERM The TERM environment variable defines the type of terminal that you are using. Most Unix systems have a database of terminal types, and the capabilities of each terminal type. PATH The PATH variable contains the names of directories to be searched for programs that correspond to command names. When you issue a command to the shell, the shell searches sequentially through each directory in the PATH list until it finds an executable program with the command name you typed.