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Full Discussion: Removing duplicates in a sorted file by field.
Top Forums Shell Programming and Scripting Removing duplicates in a sorted file by field. Post 302190380 by kinksville on Tuesday 29th of April 2008 12:22:05 PM
Old 04-29-2008
Tools Removing duplicates in a sorted file by field.
I have data like this:
It's sorted by the 2nd field (TID).
envoy,90000000000000634600010001,04/11/2008,23:19:27,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000634600010001,04/12/2008,04:23:45,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000634600010001,04/12/2008,23:14:25,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000634600010001,04/13/2008,04:23:39,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000634600010001,04/13/2008,22:41:58,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000634600010001,04/13/2008,22:42:44,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000634600010001,04/13/2008,22:49:43,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000634600010001,04/13/2008,22:50:45,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000634600010001,04/13/2008,22:53:23,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000634600010001,04/14/2008,12:38:40,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000634600010001,04/14/2008,12:52:22,RB00266,0015,DETAIL,ERROR,
envoy,90000000000000693200010001,04/17/2008,09:07:09,RB00060,0009,ENVOY,ERROR,26
envoy,90000000000000693200010001,04/18/2008,10:27:13,RB00083,0009,ENVOY,ERROR,26
envoy,90000000000000693200010001,04/18/2008,11:36:27,RB00084,0009,ENVOY,ERROR,26
envoy,90000000000001034800010001,04/01/2008,23:59:15,RB00294,0030,ENVOY,ERROR,57
envoy,90000000000001034800010001,04/02/2008,23:59:12,RB00295,0030,ENVOY,ERROR,57
envoy,90000000000001034800010001,04/03/2008,23:59:11,RB00296,0030,ENVOY,ERROR,57
envoy,90000000000001034800010001,04/04/2008,23:59:08,RB00297,0030,ENVOY,ERROR,57
envoy,90000000000001034800010001,04/05/2008,23:59:04,RB00297,0030,ENVOY,ERROR,57
envoy,90000000000001034800010001,04/06/2008,22:59:06,RB00297,0030,ENVOY,ERROR,57

I want to do the following:
Check the second field to see if the TID is the same as the previous line. If the TID has been seen before then check the 7th field to see if that is the same as the previous line. If both are the same, I want to remove the line and increment a counter.

My ideal output would look something like this.
11,envoy,90000000000000634600010001,04/11/2008,23:19:27,RB00266,0015,DETAIL,ERROR,
3,envoy,90000000000000693200010001,04/17/2008,09:07:09,RB00060,0009,ENVOY,ERROR,26

etc.

I figure I actually need to do an awk script rather than a 1 liner. The other option is for the last 3 fields to be one field and compare by the TID field and the error field, then split them into 3 on the output.

Any thoughts? I've looked at other stuff removing dups with awk and it's mostly one liners.

I'd love to ask get some explanation of WHY it works so that I can mod it if need be.
 

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shishi_krberror_der

shishi_krberror_der(3)						      shishi						    shishi_krberror_der(3)

NAME

       shishi_krberror_der - API function

SYNOPSIS

       #include <shishi.h>

       int shishi_krberror_der(Shishi * handle, Shishi_asn1 krberror, char ** out, size_t * outlen);

ARGUMENTS

       Shishi * handle
		   shishi handle as allocated by shishi_init().

       Shishi_asn1 krberror
		   krberror as allocated by shishi_krberror().

       char ** out output array with newly allocated DER encoding of KRB-ERROR.

       size_t * outlen
		   length of output array with DER encoding of KRB-ERROR.

DESCRIPTION

       DER encode KRB-ERROR.  The caller must deallocate the OUT buffer.

RETURN VALUE

       Returns SHISHI_OK iff successful.

REPORTING BUGS

       Report bugs to <bug-shishi@gnu.org>.

COPYRIGHT

       Copyright (C) 2002-2010 Simon Josefsson.
       Copying	and  distribution  of  this file, with or without modification, are permitted in any medium without royalty provided the copyright
       notice and this notice are preserved.

SEE ALSO

       The full documentation for shishi is maintained as a Texinfo manual.  If the info and shishi programs are properly installed at your  site,
       the command

	      info shishi

       should give you access to the complete manual.

shishi								       1.0.1						    shishi_krberror_der(3)
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