LINUX Interview Questions And Answers-Freshers-Experienced. Find list of the top technical interview questions and answers @ http://www.interviewquestions.latestoffcampus.com/
1. What is Linux?
A. Linux is an operating system that uses UNIX like Operating system.Linux is an operating system based on UNIX, and was first introduced by Linus Torvalds. It is based on the Linux Kernel, and can run on different hardware platforms manufactured by Intel, MIPS, HP, IBM, SPARC and Motorola. Another popular element in Linux is its mascot, a penguin figure named Tux.
2. Which daemon tracks events on your system?
A. The syslogd daemon tracks the system information and saves it to specified log files.
3. What is LILO?
A. LILO is Linux Loader is a boot loader for Linux. It is used to load Linux into the memory and start the Operating system.
4. Give me some commands for user management.
A. Commands for user management are:
last, chage, chsh, lsof, chown, chmod, useradd, userdel, newusers.
5. What is BASH?
A. BASH is short for Bourne Again SHell. It was written by Steve Bourne as a replacement to the original Bourne Shell (represented by /bin/sh). It combines all the features from the original version of Bourne Shell, plus additional functions to make it easier and more convenient to use. It has since been adapted as the default shell for most systems running Linux.
6. What is the difference between UNIX and LINUX?
A. Unix originally began as a propriety operating system from Bell Laboratories, which later on spawned into different commercial versions. On the other hand, Linux is free, open source and intended as a non-propriety operating system for the masses.
7. What is LD_LIBRARY_PATH?
A. LD_LIBRARY_PATH is an environment variable. It is used for debugging a new library or a non standard library.
8. What is partial backup?
A. When you select only a portion of your file hierarchy or a single partition to back up, it is called partial back up.
9. What the use of chmod command
A. chmod command is used to change permissions of folders and files.
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