Program

All Unix commands come with arbitrary and mandatory functions. It is very common when you forget the full syntax of these commands.

The while loop gives you the ability to execute a set of repetitive commands until certain conditions occur. It is often used when you need to manipulate iterative variable

The for loop works on lists of items (items). It repeats a set of commands for each item in a list.

The while loop is perfect for the situation where you want to execute a set of commands while some conditions are true. Sometimes you need to execute a set of commands until a

The select loop provides an easy way to create a numbered menu from which the user can select. It is useful when you want to ask the user to select one or more items from a list

A regular expression is a string that can be used to describe different sequences (arrangement) of characters. Regular Expression is often used by various Unix commands, including

A file system is a logical collection of files on a partition or a disk. A partition is an information store and can be combined into a hard disk if desired.

Unix supports a concept of Group Account, which groups a number of accounts logically. Each account will be part of any group account. The Unix team plays an important role in

The purpose of this tutorial is to introduce performance analysis with the tools available for monitoring and managing performance on Unix systems, and to provide a general

Unix systems have a very powerful and flexible logging system, which gives you the ability to record almost anything you can imagine and then manipulate this log to track the

Signals are software interrupt signals that are sent to a program that indicates a serious event has occurred. These events can be very diverse from user requests to illegal

This chapter lists the commands, including syntax and brief descriptions. For more details about these commands, you use.

Most parts of the tutorial are mostly built on Bourne Shell, but this page lists all the built math functions available in the Korn Shell.

These are the basic knowledge of unix and linux for novices with this type of operating system. Our basic tutorial series will introduce the most basic knowledge of UNIX / Linux

Unix operating system is a collection of programs that act as a link between a computer and a user.

All data in Unix is ​​organized in files. All files are organized in folders. These directories are organized in a tree structure that is called the file system.

A directory is a file whose only task is to store the name and related file information. All files, which can be regular, special or directory files, are kept in folders.

File ownership is an important component of Unix that provides a secure way to store files. Every file in Unix has the following properties to represent access rights to it.

An important Unix concept is the environment, which is defined by environment variables. Some are set up by the system, others are set up by you, by the shell or any program you

By this chapter, you have a few basic insights about Unix systems and some of its basic commands. This chapter will briefly discuss some of the basic but important utilities of