Unix basic commands interview questions and answers pdf

Please forward this error screen to sharedip-10718057119. Access Modes, Environment, Utilities, Pipes and Filters, Unix basic commands interview quest

Please forward this error screen to sharedip-10718057119. Access Modes, Environment, Utilities, Pipes and Filters, Unix basic commands interview questions and answers pdf Communication Utilities, File System, Directories, Memory Management, Special Variables, vi editor, What is Shell? Output Redirections, Functions, Man Page Help, Regular Expressions with SED, User Administration, System Performance, Logging, Signals and Traps, Processes. Linux – What is Shell?

Unix is a computer Operating System which is capable of handling activities from multiple users at the same time. T Bell Labs by Ken Thompson and Dennis Ritchie. This tutorial gives a very good understanding on Unix. This tutorial has been prepared for the beginners to help them understand the basics to advanced concepts covering Unix commands, Unix shell scripting and various utilities. We assume you have adequate exposure to Operating Systems and their functionalities.

A basic understanding on various computer concepts will also help you in understanding the various exercises given in this tutorial. It is absolutely free and online. Here we will bring to you Linux Interview Questions and all other aspects of Linux Interview, which is must for a professional in this cut-throat competition world. Linux, which is must for a professional in this cut-throat competition world. 1: What is the core of Linux Operating System? Kernel is the core of Linux Operating System.

2: What Linus Torvalds Created? Operating System and all other Linux Operating System. Linux Kernel contains 12,020,528 Lines of codes out of which 2,151,595 Lines are comments. So remaining 9,868,933 lines are codes and out of 9,868,933 Lines of codes 7,896,318 are written in C Programming Language. Assembly, Perl, Shell Script, Python, Bash Script, HTML, awk, yacc, lex, sed, etc. The Number of Lines of codes varies on daily basis and an average of more than 3,509 lines are being added to Kernel. 4: Linux initially was developed for intel X86 architecture but has been ported to other hardware platform than any other Operating System.

Linux was written for x86 machine, and has been ported to all kind of platform. Linux made a very promising future in mobile phone, Tablets. In-fact we are surrounded by Linux in remote controls, space science, Research, Web, Desktop Computing. 5: Is it legal to edit Linux Kernel?

Linux Kernel to the extent permitted under GPL. 6: What is the basic difference between UNIX and Linux Operating System. Linux Operating System is Free and Open Source Software, the kernel of which is created by Linus Torvalds and community. Well you can not say UNIX Operating System doesn’t comes under the category of Free and Open Source Software, BSD, is a variant of UNIX which comes under the category of FOSS. Moreover Big companies like Apple, IBM, Oracle, HP, etc. 7: Choose the odd one out.

Slackware is the odd in the above list. HP-UX, AIX, OSX, Solaris are developed by HP, IBM, APPLE, Oracle respectively and all are UNIX variant. Slackware is a Linux Operating System. 8: Is Linux Operating system Virus free?