Unix - Study Mode

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[#901] To yank from current cursor up to first occurrence of string str in reverse direction, we can use:

(A) y?str

(B) y!str

(C) yy str

(D) yy ! str

Correct Answer

(A) y?str

[#902] userdel is used for removing users from the system.

(A) True

(B) False

Correct Answer

(A) True

[#903] Which of the following signals are generated from the hardware?

(A) SIGFPE

(B) SIGILL

(C) SIGSEGV

(D) SIGPE, SIGILL, SIGSEGV

Correct Answer

(D) SIGPE, SIGILL, SIGSEGV

[#904] To append contents of buffer to file01, we can use . . . . . . . .

(A) : w >> file01

(B) :r > file01

(C) :w > file01

(D) :r >> file01

Correct Answer

(A) : w >> file01

[#905] Which command is used for displaying date in the format dd/mm/yyyy ?

(A) date +%m

(B) date +%h

(C) date +"%d/%m/%Y"

(D) date +"%h %m"

Correct Answer

(C) date +"%d/%m/%Y"