Computer Science

In this article we will look at file permissions in Unix with examples and commands associated with managing file permissions in Unix.   Introduction Every file has a set of permissions associated with it, which determines who can do what with the file. If your directory contains files with sensitive information, we can change their […]

In this article you will learn about directories and file names in Unix with examples. You will also learn associated commands with directories and file names in Unix like ls, pwd, mkdir, cd and du.   All the files in the system will have unique names. When we try to print the list of files […]

In this article you will learn about basics of files in Unix and what are files in Unix along with associated commands like od command and file command.   Basics of Files in Unix   A file is a sequence of bytes (1 byte = 8 bits). The meaning of the bytes in a file only depends on the […]

In this article you will learn some of the basic Unix commands along with examples. We will look at description of each basic Unix command followed by an example in XUbuntu operating system. After learning about basic Unix commands we will learn about command substitution and giving multiple commands in Unix.   Unix Basic Commands […]

In this article you will learn about the basic process of using Unix and the general Unix command features.   Using Unix To use Unix OS, user has to get into the Unix environment. The process of getting into the Unix environment is known as logging in into the system.   As soon as the […]

In this article you will learn about brief history of Unix operating system. Unix is a really old operating system that has underwent many changes along the way…   In 1969, Ken Thompson, Dennis Ritchie, and others began working on Uniplexed Information and Computing System (UNICS). The name UNICS was then shortened to Unix.   […]

In this article you will learn about the three Unix components namely, kernel, shell and file system.   Unix Components: The Kernel   Kernel is the only component that can communicate directly with the hardware. Following are some of the important functionalities provided by a kernel:   Manage hardware devices like memory and other I/O […]

In this article you will learn what is Unix and its features.   Source: https://www.ionos.com/digitalguide/fileadmin/DigitalGuide/Teaser/unix-t.jpg   An operating system (OS) acts as an interface between computer hardware and the user. Unix is an example for operating system. Other examples of operating systems are MS-DOS, MS Windows, Linux, MAC OS X, Android, iOS, etc.     […]