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Thursday, 24 September 2015

Common Linux Interview Questions and Answers pdf

46. What separates Unix Linux?
The graphics are different, Linux has more commands, Linux has more user-friendly features than Unix, Linux is versatile and independent while Unix requires special machine for installation, kernel and file system is different.

47. Which is the required command for checking the file system?
For checking the disk integrity and file system the command used is fsck.

48. What is the difference between UNIX and LINUX?
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.

49. What is the basic difference between BASH and DOS?
The key differences between the BASH and DOS console lies in 3 areas:
- BASH commands are case sensitive while DOS commands are not;
- under BASH, / character is a directory separator and \ acts as an escape character. Under DOS, / serves as a command argument delimiter and \ is the directory separator
- DOS follows a convention in naming files, which is 8 character file name followed by a dot and 3 character for the extension. BASH follows no such convention.

50. How do you open a command prompt when issuing a command?
To open the default shell (which is where the command prompt can be found), press Ctrl-Alt-F1. This will provide a command line interface (CLI) from which you can run commands as needed.

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