Gulshan Verma Singsys Pte. Ltd. Basics of Linux Gulshan Verma Singsys Pte. Ltd.

Tux The Penguin, Mascot of Linux So, the first one is Social. Social refers to the interaction of people with other people and to their surroundings, irrespective of whether they are aware of it or not, and irrespective of whether the interaction is voluntary or involuntary. Now how these interactions happens. Earlier yellow pages, magazines and newspapers were responsible for these interactions but with the rise of technology and Social Media a whole new era of social interactions came to existence. Tux The Penguin, Mascot of Linux

It is Unix based Operating System developed by community. Originated at 1991. It is free open source software (FOSS) The defining component of Linux is the Linux kernel Monolithic Micro The user interface, also known as the shell, is either a command-line interface (CLI) Sh – simple shell BASH – Bourne Again Shell KSH – Korne Shell CSH – C Shell SSH – Secure Shell Text Editor: VI, Emacs, gEdit, kWrite, Pico, Nano etc. Multics – 1964 Unics – 1969 Minix – 1990 Linux – 1991 Free - Means Liberty and not related to Price or cost Open – Source code is available and any body can contribute to the development. Organization independent 4 Freedoms with FOSS Freedom to run the software anywhere Freedom to study how the programs work. i.e source code will be accessible Freedom to redistribute copies Freedom to improve the software

Basics Commands of Linux

Basic Commands $ ls List with filename only $ ls –l List with all details $ ls –a List with hidden files $ ls -la List with hidden files and details

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