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Re: [Bug-tar] tar command option suggestion...
From: |
Tim Kientzle |
Subject: |
Re: [Bug-tar] tar command option suggestion... |
Date: |
Tue, 20 Dec 2011 17:46:17 -0800 |
On Dec 20, 2011, at 2:14 PM, Gomes, Robert wrote:
> After a discussion on computing.net, I’m writing to suggest a new option for
> the tar command. Namely, to copy an entire tar file from tape to disk
> without extracting its contents. … Community suggestions around using dd
> or piping seem to border on blind stabs as opposed to having a legitimate,
> concrete means to carry out this particular operation with data integrity.
dd was designed for exactly this purpose: copying data to/from devices with
fixed block size requirements, which includes tape drives and other "raw" media.
$ dd if=<tape drive> of=<disk file> bs=<block size>
Tim