Unix Questions

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81.

Which of the following commands is used to view your file 24 lines at a time?

A

pg

B

cat

C

lp

D

/p

E

None of the above

Correct Answer: A

None.

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82.

Which shell's wild-cards is used to match a single character?

A

*

B

?

C

[ijk]

D

[!ijk]

E

None of the above

Correct Answer: B

None.

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83.

In Bourne shell, which file sets the Unix environment for the user when the logs into his HOME directory.

A

.exrc

B

.profile

C

lastlogin

D

.mbox

E

None of the above

Correct Answer: B

None.

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84.

Which command is used to copy the three files wb, collect and mon into the misc directory, under the same, when you were currently in the programs directory?

A

copy wb ../misc collect ../misc mon ../misc

B

cp wb collect mon ../misc

C

copy wb collect mon /misc

D

tar wb collect mon /misc

E

None of the above

Correct Answer: B

None.

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85.

The command chmod 761 note is equivalent to

A

chmod 167 note

B

chmod u=rwx, g=rw, o=x note

C

chmo a =761 note

D

chmod 4=7, g=6,0 =1 note

E

None of the above

Correct Answer: B

None.

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86.

The commonly used UNIX commands like date, ls, cat, etc. are stored in

A

/dev directory

B

/bin and /usr/bin directories

C

/tmp directory

D

/unix directory

E

None of the above

Correct Answer: B

None.

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87.

Which of the following commands is used to remove files with confirmation prompt from the user file system which have neither been accessed nor modified i the last one year?

A

find -mtime +365 | rm

B

grep (/usr/*) - mtime + 365 | -ok rm

C

find -name - mtime + 365 / - ok rm

D

find /user/* (-mtime + 365 - a - atime +365 ) - OK rm {}

E

None of the above

Correct Answer: D

None.

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88.

Which of the following commands is used to summarize the disk usage?

A

chkdsk

B

fdisk

C

du

D

disk

E

None of the above

Correct Answer: C

None.

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89.

Which command is used to sort the lines of data in a file in alphabetical order?

A

sort

B

sh

C

st

D

sort -r

E

None of the above

Correct Answer: A

None.

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90.

If a file has read and write permissions for the owner, then the octal representation of the permissions will be

A

1

B

6

C

5

D

3

E

None of the above

Correct Answer: B

None.

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