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  <author_name>kgbu</author_name>
  <author_url>https://blog.hatena.ne.jp/kgbu/</author_url>
  <blog_title>kgbu's diary</blog_title>
  <blog_url>https://kgbu.hateblo.jp/</blog_url>
  <categories>
    <anon>awk</anon>
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  <description>なんというか、変なコードを書いてしまった。普通のpop3サーバなら、この情報はsyslogにだしてくれるんだけどなぁ。 pop3.awk BEGIN { username = &quot;username&quot; start = 0 username1st = sprintf(&quot;USER.%s&quot;, substr(username, 1, 3)) username2nd = substr(username, 4, 16) } $1 ~ /^[0-9][0-9]:/ { lasttime = $1 } $1 ~ &quot;0x0020:&quot; &amp;&amp; $NF ~ /^P/ &amp;&amp; $NF ~ username1st { star…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2007-10-04 17:33:46</published>
  <title>tcpdumpを使ってPOP3を監視</title>
  <type>rich</type>
  <url>https://kgbu.hateblo.jp/entry/20071004/1191486826</url>
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