I am playing around a little with the hacked tar called "hfstar" to implement a backup strategy. I noticed in the hfstar help it indicates:
I have a vague understanding of POSIX - but don't really know what it is. Can someone give me a brief description of POSIX and how it affects me and my backups?
GNU tar cannot read nor produce `--posix' archives. If POSIXLY_CORRECT
is set in the environment, GNU extensions are disallowed with `--posix'.
Support for POSIX is only partially implemented, don't count on it yet.
I have a vague understanding of POSIX - but don't really know what it is. Can someone give me a brief description of POSIX and how it affects me and my backups?