Unix - Study Mode

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[#446] Redirection is a process of switching of the standard stream of data.

(A) True

(B) False

Correct Answer

(A) True

[#447] Device files are used by the kernel for operating the device.

(A) True

(B) False

Correct Answer

(A) True

[#448] Which of the following symbols are used for accessing previous commands by event numbers?

(A) !

(B) r

(C) $

(D) ! and r

Correct Answer

(D) ! and r

[#449] Command substitution is enabled in single quotes also.

(A) True

(B) False

Correct Answer

(B) False

[#450] What is the output of who command?

(A) display information about users who are currently logged in.

(B) display file hierarchy

(C) display administrator information

(D) display processes

Correct Answer

(A) display information about users who are currently logged in.