Author: Surendra Anne

16 ls command examples in Linux/Unix

What you should know about ls command in Linux? Just going to start Linux basics? Then you should not miss “ls command” which have all ingredients of Linux basics. In order to understand ls command output you should know following stuff. 1)  File types in Linux 2) Permissions and ownership’s of files 3) Special permissions like SUID, SGID, ACL’s, Sticky bit, SELinux. 4) Users and groups concepts 5) Inodes 6) Checking file modification times. 7) Directory structure 8) Relative and absolute paths 9) How file and folder sizes are calculated 10) Colouring scheme of types of files. 11) Linux...

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Understanding DOCKER containers in Linux?

Docker is basically a concept of creating a light weight ‘Virtual Machines’ within a Linux Machine by just creating a single process in it. The real meaning of a Docker is “person who load and unload the containers from a ship’. If you don’t understand how it creates and manages virtual machines(aka containers), then this post is for you. In this post we will see what is a Docker in layman’s way and what problem it is going to solve in IT. Before explaining Docker, we should know what is a container and virtualization. What is a container? A...

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What is puppet? Why Linux/Unix users require it?

What is Puppet? The puppet is a configuration management tool used by system administrators and devops engineers to build and configure IT infrastructure. To understand it we should know a bit of history about how information technology evolved. Initials days of computers, machines are independent and time shared based with limited resources to work with. The DARPA aimed to develop a distributed network of computers which are independent of single point of failure to sustain attacks form USSR. They inter connected machines from different locations to communicate for reduction of single point of failure and effectively utilizing other system resources such...

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ABOUT ME..!

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My name is Surendra Kumar Anne. I hail from Vijayawada which is cultural capital of south Indian state of Andhra Pradesh. I am a Linux evangelist who believes in Hard work, A down to earth person, Likes to share knowledge with others, Loves dogs, Likes photography. At present I work at Bank of America as Sr. Analyst Systems and Administration. You can contact me at surendra (@) linuxnix dot com.