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Full Discussion: Removing a line IF the next line contains string
Top Forums Shell Programming and Scripting Removing a line IF the next line contains string Post 302557933 by Corona688 on Thursday 22nd of September 2011 11:24:37 AM
Old 09-22-2011
Is the first ------------- necessary? If not, awk makes this easy.

Set RS="------..." so awk considers each thing between -------'s one record.
Set FS="\n" so each line is considered one field.
Set OFS="-------..." so it prints the dashed lines between on the way out.

Then, for each record/block, print only if there's more than 2 fields/lines.
Code:
$ cat 2line.awk
BEGIN { RS="-------------------------------\n"
        ORS="-------------------------------\n"
        FS="\n" }

(NF>2)
$ awk -f 2line.awk < data
13:30:01.651743 IP 234.234.45.654.2054 > 657.435.23.453.80: tcp 430
:./f"J}/i...P.....:..P.......GET /afsonline/show_afs_ads.js HTTP/1.1
Accept: */*
Referer: http://url-removed/shop/juniors/a...86&edge=hybrid
Accept-Language: en-us
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; .NET CLR 1.1.4322; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2; .NET4.0C)
Host: Google
Connection: Keep-Alive
-------------------------------
13:30:01.651743 IP 132.23.235.11.2054 > 234.234.345.1.80: tcp 430
:./f"J}/i...P.....:..P.......GET /afsonline/show_afs_ads.js HTTP/1.1
Accept: */*
Referer: http://url-removed/shop/juniors/a...86&edge=hybrid
Accept-Language: en-us
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; .NET CLR 1.1.4322; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2; .NET4.0C)
Host: Google
Connection: Keep-Alive
-------------------------------
$

Last edited by radoulov; 09-22-2011 at 12:34 PM.. Reason: URL removed.
This User Gave Thanks to Corona688 For This Post:
eh3civic
 

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LEARN ABOUT SUSE

pcap_free_datalinks

PCAP_LIST_DATALINKS(3PCAP)												PCAP_LIST_DATALINKS(3PCAP)

NAME

       pcap_list_datalinks, pcap_free_datalinks - get a list of link-layer header types supported by a capture device, and free that list

SYNOPSIS

       #include <pcap/pcap.h>

       int pcap_list_datalinks(pcap_t *p, int **dlt_buf);
       void pcap_free_datalinks(int *dlt_list);

DESCRIPTION

       pcap_list_datalinks()  is used to get a list of the supported link-layer header types of the interface associated with the pcap descriptor.
       pcap_list_datalinks() allocates an array to hold the list and sets *dlt_buf to point to that array.

       The caller is responsible for freeing the array with pcap_free_datalinks(), which frees the list of link-layer header types pointed  to	by
       dlt_list.

RETURN VALUE

       pcap_list_datalinks()  returns  the  number  of	link-layer  header  types  in  the array on success and -1 on failure.	If -1 is returned,
       pcap_geterr() or pcap_perror() may be called with p as an argument to fetch or display the error text.

SEE ALSO

       pcap(3PCAP), pcap_geterr(3PCAP), pcap_datalink_val_to_name(3PCAP), pcap-linktype(7)

								  22 August 2010					PCAP_LIST_DATALINKS(3PCAP)
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