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MCQ

Q.

Which command is used to make all files and sub-directories in the directory (progs) executable by all users?

A

chmod -R a+x progs

B

chmod -R 222 progs

C

chmod -1 a+x progs

D

chmod -x a+x progs

E

None of the above

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MCQ

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Which of the following special shell variables is used to process number of the last background job?

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$!

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$#

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$0

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None of the above

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Which option is used with rm command to make the command prompt the user with each filename and a ?, before acting on it

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None of the above

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None of the above

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