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Q.

Which of the following commands is used to identify the type of file by context?

A

ls

B

cat

C

file

D

more

E

None of the above

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MCQ

1.

Which of the following commands is used to count the total number of lines, words, and characters contained in a file.

A

count p

B

wc

C

wcount

D

countw

E

None of the above

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Which of the following commands is used to update access and modification times of a file?

A

grep

B

wc

C

touch

D

cat

E

None of the above

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Which of the following keys is used to replace a single character with new text?

A

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B

s

C

r

D

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None of the above

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In UNIX, the set of masked signals can be set or cleared using the ________ function.

A

sigmask

B

sigmaskproc

C

sigprocmask

D

sigproc

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Which of the following is not a filter?

A

cat

B

grep

C

wc

D

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E

None of the above

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