UNIX QUIZ

Which of the following special shell variables is used to process number of the current shell?

None of these

$*

$$

$!

TRUE ANSWER : ?
YOUR ANSWER : ?

Which command is used to extract specific columns from the file?

cut

cat

paste

grep

TRUE ANSWER : ?
YOUR ANSWER : ?

Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?

chmod u+x emp[1-3]

chmod 222 emp?

chmod 777 emp*

chmod u+r ??? emp

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of command is used to copy a file?

copy

tar

cp

cpio

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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?

None of these

cp wb collect mon ../misc

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

copy wb collect mon /misc

tar wb collect mon /misc

TRUE ANSWER : ?
YOUR ANSWER : ?

Which command is used to terminate a process?

haltsys

shutdown

kill

cancel

TRUE ANSWER : ?
YOUR ANSWER : ?

The ls -l command tells

how large the file is and when the file was last modified.

who the owner of the file is

the name of the group owner of the file

None of these

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which command is used to move all files to the bin sub-directory of the parent directory?

None of these

mv * /bin/*

mv * ../bin *.*

mv *.* /bin/

mv * ../bin

TRUE ANSWER : ?
YOUR ANSWER : ?

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

sort

st

None of these

sh

sort -r

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following commands can be used to get information about yourself?

i /4

which

pwd

None of these

who am i

TRUE ANSWER : ?
YOUR ANSWER : ?

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