On 21.07.21 19:21, Alvaro Herrera wrote:
> On 2021-Jul-21, Peter Eisentraut wrote:
>
>> On 21.07.21 01:45, Alvaro Herrera wrote:
>>> <screen>
>>> -<userinput>gunzip postgresql-&version;.tar.gz</userinput>
>>> -<userinput>tar xf postgresql-&version;.tar</userinput>
>>> +<userinput>tar xfa postgresql-&version;.tar.gz</userinput>
>>> </screen>
>>
>> The "a" option only applies when creating a tar archive ("c" command). So
>> adding it here does nothing.
>
> Oh, so the current `tar x` knows to uncompress the file without any
> additional options? I've been pointlessly adding 'z', 'j', 'a' for years ...
> That means we can remove the `gunzip` line and replace it with nothing.
Unless you want to assume GNU tar, the gunzip is still necessary.
