On 2014-01-15 07:15, Volker Braun wrote:
Its true that tar will extract the files as group-writeable if your umask
allows it.
Even if umask *does not* allow it (my umask is always 0022 and the files
ended up being group-writable).
It would be decidedly weird if there are untrusted users
in your own primary group.
[citation needed]
Many older Linux/Unix distributions had the habit of having one group,
say "users" for all users.
Jeroen.
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