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使用 awk 解析 .co.uk whois

tag-icon • tag-icon linux bash awk whois
使用 awk 解析 .co.uk whois

我想知道是否有人可以告诉我为什么这些 awk 不起作用，他们应该提供注册商和到期日期：

${AWK} -F: '/Registrar:/ && $0 != ""  { getline; REGISTRAR=substr($0,2,17) } END { print REGISTRAR }'

和

awk '/Expiry date:/ { print $3 }'``

这是 whois 的打印输出：

Domain name:
    kurtisbro.co.uk

Registrant:
    kurtis brown

Registrant type:
    UK Individual

Registrant's address:
    23 Cambria Mews
    NOTTINGHAM
    NG3 4GZ
    United Kingdom

Registrar:
    Heart Internet Ltd t/a eXtend [Tag = EXTEND]

Relevant dates:
    Registered on: 01-Mar-2012
    Expiry date:  01-Mar-2014
    Last updated:  23-Jun-2012

Registration status:
    Registered until expiry date.

Name servers:
    ns.mainnameserver.com
    ns2.mainnameserver.com

WHOIS lookup made at 17:38:12 07-Aug-2012

-- 
This WHOIS information is provided for free by Nominet UK the central registry
for .uk domain names. This information and the .uk WHOIS are:

Copyright Nominet UK 1996 - 2012.

You may not access the .uk WHOIS or use any data from it except as permitted
by the terms of use available in full at http://www.nominet.org.uk/whois, which
includes restrictions on: (A) use of the data for advertising, or its
repackaging, recompilation, redistribution or reuse (B) obscuring, removing 
or hiding any or all of this notice and (C) exceeding query rate or volume   
limits. The data is provided on an 'as-is' basis and may lag behind the
register. Access may be withdrawn or restricted at any time.

答案1

for DOMAIN in newcastle.co.uk  guinness.co.uk  ;do
    echo "";
    echo $DOMAIN;
    whois $DOMAIN | awk -F: '/Registrar:/ && $0 != ""  { getline; REGISTRAR=$0 } END { print REGISTRAR }';
    whois $DOMAIN | awk -F: '/Expiry date:/ && $0 != ""  { EXPDATE=$0 } END { print EXPDATE }';
done

输出：

newcastle.co.uk
Corporation Service Company (UK) Limited [标签 = CSC-CORP-DOMAINS]
到期日期：2014 年 3 月 30 日

guinness.co.uk
Melbourne IT t/a Internet Names Worldwide [标签 = MELBOURNE-IT]
到期日期：2014 年 1 月 6 日

答案2

以下示例使用自定义记录分隔符提取两个项目。它们都处理Registrar:记录中的多行。

awk -vRS="(\n *Registrar:\n)|(\n +Expiry date: +)" \
'NR==2{ $0=gensub( /(^|\n) +/, "\\1","g" ) # gensub requires GNU awk
        match($0,/\n\n/); print substr($0,1,RSTART-1) } 
 NR==3{ match($0,/\n/);   print substr($0,1,RSTART-1) }'

或者

awk -vRS="\n\n" '
 $1 == "Registrar:" { 
    gsub( /(^|\n) +/, "\n" )   # remove leading spaces
    sub( /Registrar:\n/, "" )  # remove "Registrar:" header line
    print 
 } 
 $1" "$2 == "Relevant dates:" { 
    match( $0, /Expiry date: +/ ); beg=RSTART+RLENGTH
    match( $0, /Expiry date: +[^\n]+/ )
    print substr( $0, beg , RSTART+RLENGTH-beg ) 
 }'

输出

Heart Internet Ltd t/a eXtend [Tag = EXTEND]
01-Mar-2014

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