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What is the purpose of the – option passed to the tar command?

Jane has stored files in a compressed tar archive. She extracts the data with the following command:
$ zcat keyfiles.tar.Z | tar tvf –
Examine the command line. What is the purpose of the – option passed to the tar command?

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A.
The – disables the tar commands output.

B.
The – reads the file argument to the tar command from stdin.

C.
The – tells the tar command to uncompress the input.

D.
The – causes the tar command output to be sent to disk.


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