файлы дампа в различных форматах (dump files in various formats)
Операнды (Operands)
The following operands shall be supported:
file A pathname of a file to be read. If no file operands
are specified, the standard input shall be used.
If there are no more than two operands, none of the -A,
-j, -N, -t, or -v options is specified, and either of
the following is true: the first character of the last
operand is a <plus-sign> ('+'), or there are two
operands and the first character of the last operand is
numeric; the last operand shall be interpreted as an
offset operand on XSI-conformant systems. Under these
conditions, the results are unspecified on systems that
are not XSI-conformant systems.
[+]offset[.][b]
The offset operand specifies the offset in the file
where dumping is to commence. This operand is normally
interpreted as octal bytes. If '.' is appended, the
offset shall be interpreted in decimal. If 'b' is
appended, the offset shall be interpreted in units of
512 bytes.
