Unix
Which option is used with cmp command to give a detailed list of the byte number and the differing bytes in octal for each character that differs in both the files?

-b
-l
-d
-r
None of these

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Unix
The special shell variable $* is used

None of these
to exit status of ast command executed.
to process number of the current shell
to list the positional parameters
to name the command being executed

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Unix
The cp command uses:

both input and output file
standard input file
standard output file
neither standard input nor standard output file

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