ipconfig /?|hexdump

00000000: 0D 0D 0A 55 53 41 47 45 - 3A 0D 0D 0A 20 20 20 20 |   USAGE:
+       |
00000010: 69 70 63 6F 6E 66 69 67 - 20 5B 2F 3F 20 7C 20 2F |ipconfig 
+[/? | /|
00000020: 61 6C 6C 20 7C 20 2F 72 - 65 6E 65 77 20 5B 61 64 |all | /re
+new [ad|
00000030: 61 70 74 65 72 5D 20 7C - 20 2F 72 65 6C 65 61 73 |apter] | 
+/releas|
00000040: 65 20 5B 61 64 61 70 74 - 65 72 5D 20 7C 0D 0D 0A |e [adapte
+r] |   |
00000050: 20 20 20 20 20 20 20 20 - 20 20 20 20 20 20 2F 66 |         
+     /f|
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 |   
+       |

[download]
You can see 0D 0D 0A repeatedly. chcp says cmd.exe is using cp437
cmd.exe and notepad don't show extra newlines.
Is it an actual encoding or just errant output?

Here is a perlio solution 

open IN, '-|:raw:crlf', 'ipconfig /?' ...
open OUT', '>:raw' ..

[download]

In reply to ipconfig output encoding ( 0D 0D 0A ) by Anonymous Monk

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