Re: man tar

On 04/10/2020 16:05, Roderick wrote:
>
> We read there:
>
> """""
> -f archive
>
> Filename where the archive is stored. Defaults to /dev/rst0. If set to
> hyphen ('-') standard output is used. See also the TAPE environment
> variable.
>
> """"""
>
> Well, hyphen ('-') may also mean stdin as expected, but it seems not
> to be mentioned/insinuated on the man page.

Interesting.


Recent versions of tar(1) on {Free,Net}BSD stipulate:


-f file, --file file
Read the archive from or write the archive to the specified file. The
filename can be - for standard input or standard output. The default
varies by system; on FreeBSD, the default is /dev/sa0; on Linux, the
default is /dev/st0.


I assume it's stdin when compressing and stdout when expanding. Or maybe
vice versa?



--
Ottavio Caruso

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