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Linux Interview Questions and Answers

1
Which account is created on Linux installation?

With the installation of Linux, a super user account is created called as ‘root’.

2
What command is used to count the total number of lines, words, and characters contained in a file?

wc

3
What is Linux?

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.

4
Which daemon tracks events on your system?

The syslogd daemon tracks the system information and saves it to specified log files.

5
What is the basic difference between UNIX and Linux Operating System?

Linux is free and open-source software (allowing programmers to program with Linux not around it), the kernel of which is created by Linus Torvalds and community. UNIX, on the other hand, is UNIX is copyrighted name only big companies are allowed to use the UNIX copyright and name, so IBM AIX and Sun Solaris and HP-UX all are UNIX operating systems.

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