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tar was based on an early draft of the
ustar standard. GNU extensions to
tar, such as the support for file names longer than 100
characters, use portions of the
tar header record which were
specified in that POSIX draft as unused. Subsequent changes in
POSIX have allocated the same parts of the header record for
other purposes. As a result, GNU
tar format is
incompatible with the current POSIX specification, and with
tar programs that follow it.
In the majority of cases,
tar will be configured to create
this format by default. This will change in future releases, since
we plan to make ‘POSIX’ format the default.
To force creation a GNU
tar archive, use option
This document was generated on March 24, 2021 using texi2html 5.0.