(tar.info.gz) gnu
Info Catalog
(tar.info.gz) ustar
(tar.info.gz) Portability
(tar.info.gz) posix
8.3.6 GNU and old GNU `tar' format
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GNU `tar' was based on an early draft of the POSIX 1003.1 `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 `--format=gnu'.
Info Catalog
(tar.info.gz) ustar
(tar.info.gz) Portability
(tar.info.gz) posix
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