Unix - Study Mode

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[#941] . . . . . . . . is a simple tool that will collect and show system input and output storage device statistics.

(A) top

(B) lsof

(C) vmstat

(D) Iostat

Correct Answer

(D) Iostat

[#942] To delete from current cursor upto the first occurrence of }, which of the following will be used?

(A) dd$}

(B) d /

(C) d / }

(D) }

Correct Answer

(C) d / }

[#943] Which option is used to find command to search for files based on access time?

(A) -atime

(B) -mtime

(C) -time

(D) -type

Correct Answer

(A) -atime

[#944] We can also duplicate the file descriptor using . . . . . . . .

(A) dup1

(B) dup2

(C) exevr

(D) exec

Correct Answer

(B) dup2

[#945] Which one of the following command is used for replacing | with : globally?

(A) sed 's/|/:/' emp.lst

(B) sed '/|/:/' emp.lst

(C) sed 's/|/:/g' emp.lst

(D) sed 's/

Correct Answer

(C) sed 's/|/:/g' emp.lst