Linux

What is crontab? Cron is named after Greek word “Chronos” that is used for time. It is a system process that will automatically perform tasks as per the specific schedule. It is a set of commands that are used for running regular scheduling tasks. Crontab stands for “cron table”. It allows to use job scheduler,…

Key Difference Between Unix and Linux Comparing Unix vs Linux, Linux source code is available to the general public whereas, in Unix, the source code is proprietary. UNIX OS was created in the late 1960s at AT&T Bell Labs whereas Linux is an operating system built by Linus Torvalds at the University of Helsinki in…

As Linux is a multi-user operating system, there is a high need of an administrator, who can manage user accounts, their rights, and the overall system security for User management in Linux. You should know the basics of Linux admin so that you can handle the user accounts and usergroups for user management in Linux….

Linux is a multi-user system, which allows many users to work on it simultaneously. So what if different users need to work on the same system at a time? How do you do that? This is where we need the virtual terminals, let us learn about them. What are Virtual Terminals? Virtual Terminals are similar…

Shell Scripting Shell Scripting is an open-source computer program designed to be run by the Unix/Linux shell. Shell Scripting is a program to write a series of commands for the shell to execute. It can combine lengthy and repetitive sequences of commands into a single and simple script that can be stored and executed anytime…

What is the VI editor? The VI editor is the most popular and classic text editor in the Linux family. Below, are some reasons which make it a widely used editor – 1) It is available in almost all Linux Distributions 2) It works the same across different platforms and Distributions 3) It is user-friendly….

What is a Process? An instance of a program is called a Process. In simple terms, any command that you give to your Linux machine starts a new process. Having multiple processes for the same program is possible. Types of Processes: Foreground Processes: They run on the screen and need input from the user. For…

Key Difference between Telnet and SSH Telnet is the standard TCP/IP protocol for virtual terminal service, while SSH or Secure Shell is a program to log into another computer over a network to execute commands in a remote machine. Telnet is vulnerable to security attacks while SSH helps you to overcome many security issues of…