Unix Questions

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121.

The first set of the three permissions (rw) pertains to the owner of the file, indicating that the owner has

A

executable permission only

B

write and executable permissions

C

both read and executable permissions.

D

both read and write permissions

E

None of the above

Correct Answer: D

None.

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122.

Which of the following commands is used to save the output of the who command in a file named user.lst, as well as display it?

A

who | tee user.lst

B

who > user.lst

C

who >> user.lst

D

who < user.lste

E

None of the above

Correct Answer: A

None.

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123.

Which of the following shell's wildcards are used to match any number of characters including none?

A

[ijk]

B

[!ijk]

C

?

D

*

E

None of the above

Correct Answer: D

None.

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124.

The command used to remove the directory is

A

rmdir

B

rd

C

remove

D

rdir

E

None of the above

Correct Answer: A

None.

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125.

Which symbol will be used with grep command to match the pattern pat at the end of a line?

A

^pat

B

$pat

C

pat$

D

pat^

E

None of the above

Correct Answer: C

None.

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126.

Which command is used to display all the lines with the string 'sales' from the file empl.lst?

A

cut sales empl.lst

B

/sales > empl.lst

C

grep sales empl.lst

D

cat | /sales > empl.lst

E

None of the above

Correct Answer: C

None.

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127.

Which of the following commands is not the vi Input mode command?

A

rch

B

R

C

S

D

j

E

None of the above

Correct Answer: D

None.

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128.

Which of the following commands is used to remove files?

A

erase

B

delete

C

rm

D

dm

E

. None of the above

Correct Answer: C

None.

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129.

Which command is used with vi editor to save file and remain in the editing mode?

A

:q

B

:w

C

q!

D

:x

E

None of the above

Correct Answer: B

None.

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130.

You can append to a file instead of overwriting by using the

A

> symbols

B

>> symbols

C

< symbols

D

<< symbols

E

None of the above

Correct Answer: B

None.

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