Unix / Linux – Using Shell Variables
A variable is a character string to which we assign a value. The value assigned could be a number, text, filename, device, or any other …
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Unix / Linux – What is Shells?
A Shell provides you with an interface to the Unix system. It gathers input from you and executes programs based on that input. When a program finishes …
Unix / Linux – Shell Scripting Tutorial
A shell script is a computer program designed to be run by the Unix/Linux shell which could be one of the following: The Bourne Shell …
Unix / Linux – The vi Editor Tutorial
There are many ways to edit files in Unix. Editing files using the screen-oriented text editor vi is one of the best ways. This editor enables you …
Unix / Linux – Network Communication Utilities
When you work in a distributed environment, you need to communicate with remote users and you also need to access remote Unix machines. There are …
Unix / Linux – Processes Management
When you execute a program on your Unix system, the system creates a special environment for that program. This environment contains everything needed for the …
Unix / Linux – Pipes and Filters
You can connect two commands together so that the output from one program becomes the input of the next program. Two or more commands connected …
