tar: Portable Names
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1 8.3.1 Portable Names
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1 Use portable file and member names. A name is portable if it contains
1 only ASCII letters and digits, '/', '.', '_', and '-'; it cannot be
1 empty, start with '-' or '//', or contain '/-'. Avoid deep directory
1 nesting. For portability to old Unix hosts, limit your file name
1 components to 14 characters or less.
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1 If you intend to have your 'tar' archives to be read under MSDOS, you
1 should not rely on case distinction for file names, and you might use
1 the GNU 'doschk' program for helping you further diagnosing illegal
1 MSDOS names, which are even more limited than System V's.
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