Linux - Explain the various prompts that are available in a UNIX system

Explain the various prompts that are available in a UNIX system.

UNIX supports 4 prompts:

PS1: default prompt
PS2: for the purpose of multi-line input
PS3: for printing the select command
PS4: for printing before the output if –x is set.
Linux - Describe how the kernel differentiates device files and ordinary files
Describe how the kernel differentiates device files and ordinary files - There are 2 device files. They are character device file and block device file........
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How to switch to a super user status to gain privileges - The command ?su? is used to get super user status.......
20 Unix Interview Questions and Answers - Freshers, Experienced
Unix interview questions with answers for freshers and experienced, unix online test, unix jobs - In this series, we have covered all about UNIX and answered the questions that might be asked during an interview.
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