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Articles tagged with #linux
EC2 linux instances are our kingdom, & we as engineers rule over it. If we make a small mistake in ssh_config file of not adding our root user (centos / ubuntu / ec2-user) in AllowUsers section, we will lose complete access to our instances as a root...
Linux is an open source Operating system. Its lightweight (System requirements for running it is less than other OS), provides high performance, stability & is very flexible. 2 Types of commands in linux - Internal / Built - in commands - They are ...
Shell - It is a Command line Interface that will interpret our commands. It executes each and every command line by line. Since everything in Linux is a File(even the commands) how will the Operating System know where is the file for a command and Ho...
What happens behind the scenes when you execute a command in Linux? Linux uses 3 standards streams for doing things behind the scenes. Stdin (Standard Input) Stdout (Standard Output) Stderr (Standard Error) Output can be done through a Terminal, Fil...
Terminal - A Tool which opens a window(CLI) for you, it takes input from you(User), as commands, and displays output on the screen. You interact with the shell using terminal. So what is a Shell? and why there’s a need to talk to shell? Shell - It is...
