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).