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How to Use Special Keys in UNIX

UNIX operating system has some special keys. These you can use to interrupt the program processing or to resume it. The file management and keys totally different in UNIX kinds of operating systems. 

An example of a UNIX special key and its use.
Special Keys in UNIX much useful to take action  when something happens.

1. Why You Need Program Interruption in UNIX.

A scenario where you made some mistake in the input command and you need to stop the further process. Then you can use the CTRL+C command. It is equal to the DELETE command.

2. List of UNIX Special Keys.

The RETURN key signifies the end of a line of input. On any terminal, RETURN has a key of its own, or return may be typed by holding down the control key and typing a 'm'.

CTRL-m Key
Hint: Ctrl-m command is equal to RETURN key in Unix systems

The DELETE key stops a program/command immediately, without waiting for it to finish. DELETE can be achieved equivalently with ctrl-c.
Hint: Ctrl-c Command you can use …

10 Top Unix Disk Space Quiz Questions

I have listed 10 top Quiz questions on UNIX disk space. These questions help you to understand about disk related concepts quickly.

Unix Disk Space QUIZ Questions.

1. All devices are considered as files in Unix.


2. All device files are stored in /etc or in its subdirectories.


3. CD-ROM is a character device.


4. Printer is a character device.


5. The minor number represents the type of device.


6. The dd command is used for copying data from one medium to another.


7. The term bs in the dd command stands for block size.


8. The du utility displays complete information about the usage of disk space by each file and directory.


9. By default, the du command displays information in terms of 1024-byte blocks.


10. The df command reports only the free disk space of the file system installed on our machines.


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