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(fileutils.info)More details about version sort

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More details about version sort
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   The version sort takes into account the fact that file names
frequently include indices or version numbers.  Standard sorting
functions usually do not produce the ordering that people expect
because comparisons are made on a character-by-character basis.  The
version sort addresses this problem, and is especially useful when
browsing directories that contain many files with indices/version
numbers in their names:

           > ls -1            > ls -1v
           foo.zml-1.gz       foo.zml-1.gz
           foo.zml-100.gz     foo.zml-2.gz
           foo.zml-12.gz      foo.zml-6.gz
           foo.zml-13.gz      foo.zml-12.gz
           foo.zml-2.gz       foo.zml-13.gz
           foo.zml-25.gz      foo.zml-25.gz
           foo.zml-6.gz       foo.zml-100.gz

   Note also that numeric parts with leading zeroes are considered as
fractional one:

           > ls -1            > ls -1v
           abc-1.007.tgz      abc-1.007.tgz
           abc-1.012b.tgz     abc-1.01a.tgz
           abc-1.01a.tgz      abc-1.012b.tgz