Re: awk / sed - trouble with CR character

[Corinna Vinschen <corinna-cygwin at cygwin dot com>]

On Mon, Aug 25, 2003 at 05:12:22PM -0400, Cary Lewis wrote:
> I have a binary file, with 8 lines of ascii at the top, and then a binary
> line
> 
> The binary line contains the 0x0d.
> 
> E.g.
> 
> $ od -tx1 a
> 0000000 31 0a 32 0a 33 0a 34 0a 35 0a 36 0a 37 0a 38 0a
> 0000020 31 32 33 0d 0a 39 39 39 0a 34 35 36 0a
> 0000035
> 
> $ cat a
> 1
> 2
> 3
> 4
> 5
> 6
> 7
> 8
> 123
> 999
> 456
> 
> If I try to to use sed to eliminate the first 8 lines (or awk)
> 
> then the CR character is dropped
> 
> e.g.
> 
> sed '1,8d' a | od -tx1 yields:
> 
> $ sed  '1,8d' a|od -tx1
> 0000000 31 32 33 0a 39 39 39 0a 34 35 36 0a
> 0000014
> 
> Is there a way to make this work in Cygwin.

Not with sed, which is treating all input as text.  But it should work
with gawk.  I just tried it by myself, using the latest gawk-3.1.3:

$ awk '{ if ( NR > 8 ) print $0; }' < a|od -tx1
0000000 31 32 33 0d 0a 39 39 39 0d 0a 34 35 36 0d 0a
0000017

Corinna

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Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin@cygwin.com
Red Hat, Inc.

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