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ipconfig /?|hexdump ... 00000060: 6C 75 73 68 64 6E 73 20 - 7C 20 2F 64 69 73 70 6C |lushdns | + /displ| 00000070: 61 79 64 6E 73 20 7C 20 - 2F 72 65 67 69 73 74 65 |aydns | / +registe| 00000080: 72 64 6E 73 20 7C 0D 0D - 0A 20 20 20 20 20 20 20 |rdns | + |
open IN, '-|:raw:crlf', 'ipconfig /?' ... open OUT', '>:raw' ..