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Full Discussion: how to get specific line
Top Forums UNIX for Dummies Questions & Answers how to get specific line Post 302570086 by Corona688 on Wednesday 2nd of November 2011 11:07:09 AM
Old 11-02-2011
I don't understand where you're getting that "null".

Code:
$ cat london.awk 

BEGIN { RS=""; FS="\n" }
$1 == "london" {

        for(N=2; N<=NF; N++)
        if($N ~ /line y/)
        {
                split($N, A, "=");
                print A[2];
                FOUND=1;
                break;
        }
}

$ awk -f london.awk  < london

 2
 1b
$

 

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LEARN ABOUT DEBIAN

ldns-read-zone

ldns-read-zone(1)					      General Commands Manual						 ldns-read-zone(1)

NAME

       ldns-read-zone - read a zonefile and print it

SYNOPSIS

       ldns-read-zone ZONEFILE

DESCRIPTION

       ldns-read-zone reads a DNS zone file and prints it. The output has 1 resource record per line, and no pretty-printing makeup.

OPTIONS

       -c     Canonicalize all resource records in the zone before printing

       -d     Only  print  DNSSEC  data from the zone. This option skips every record that is not of type NSEC, NSEC3, RRSIG or DNSKEY. DS records
	      are not printed.

       -h     Show usage and exit

       -n     Do not print the SOA record

       -s     Strip DNSSEC data from the zone. This option skips every record that is of type NSEC, NSEC3, RRSIG or DNSKEY. DS records	are  still
	      printed.

       -S [[+|0]number | YYYYMMDDxx | unixtime ]
	      Set  serial  number  to  the  given number, or when preceded by a sign, offset the exisiting number with it. When giving the literal
	      strings YYYYMMDDxx or unixtime, the serial number is tried to be reset in datecounter or in unixtime format respectively. Though	is
	      the updated serial number is smaller than the original one, the original one is simply increased by one.

	      When updating a serial number, records of type NSEC, NSEC3, RRSIG and DNSKEY will be skipped when printing the zone.

       -v     Show the version and exit

       -z     Sort the zone before printing (this implies -c)

AUTHOR

       Written by the ldns team as an example for ldns usage.

REPORTING BUGS

       Report bugs to <ldns-team@nlnetlabs.nl>.

COPYRIGHT

       Copyright  (C)  2005 NLnet Labs. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR-
       POSE.

								    30 May 2005 						 ldns-read-zone(1)
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