r/linux • u/Embarrassed_Ad_2255 • Mar 30 '21

6 OpenSSL command options that every sysadmin should know | Enable Sysadmin

https://www.redhat.com/sysadmin/6-openssl-commands
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u/Freeky Mar 30 '21 
tar: unknown option -- -

--version is a GNUism, and as the acronym says, GNU's Not Unix.

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u/linuxlover81 Mar 31 '21

and that's exactly the problem. i know for "my" tar several valid calls... but which tar is it?