Unix - Study Mode

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[#936] Which one of the following command will search history list for the previous command having the last occurrence of string cvf?

(A) /cvf

(B) /cvf [enter]

(C) /bkw

(D) !cvf

Correct Answer

(A) /cvf

[#937] The parent id of a child is called . . . . . . . .

(A) PID

(B) PPID

(C) TID

(D) PTID

Correct Answer

(B) PPID

[#938] A file has a permission set as 000 i.e. — — —. Can the file be deleted?

(A) Yes

(B) No

Correct Answer

(A) Yes

[#939] . . . . . . . . command is used to display the environment variables only.

(A) set

(B) env

(C) sh

(D) var

Correct Answer

(B) env

[#940] Which command is used for putting deleted lines or part of lines at a different location?

(A) p and P

(B) x

(C) dd

(D) y

Correct Answer

(A) p and P