3.9.1 Keywords controlling tar operation

These keywords control warnings that may appear in any GNU tar operation mode:

warning: filename-with-nuls

file name read contains nul character

warning: filename-with-nuls

%s: file name read contains nul character

warning: alone-zero-block

A lone zero block at %s’. Notice, that this warning is suppressed if --ignore-zeros is in effect (see Ignoring Blocks of Zeros).

warning: missing-zero-blocks

Terminating zero blocks missing at %s’. This warning is suppressed if --ignore-zeros is in effect (see Ignoring Blocks of Zeros).