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ログ(単位時間当たり)簡易集計スクリプト

Last updated at Posted at 2015-09-16

postfix のログ等において
単位時間当たりの特定のメッセージを集計するスクリプト例

 "status=sent"  postfix が送信/転送したメール数/秒を集計した例


count.sh
#!/bin/bash
count=0
before=""
keyword="status=sent"

tail -f /var/log/maillog | grep --line-buffered "$keyword"|
while read line;do
  now=$(echo $line|cut -f2 -d' ')
  if [ "$before" = "$now" ];then
    count=$[count+1]
    echo -ne "$now $count\r"
  else
    if [ "$before" ] ;then
      echo -ne "$before $count\n"
    fi
    echo -ne "$now 1\r"
    count=1
    before=$now
  fi
done

以下のように 件数/秒 での集計できる。

[user@hogehoge ~]$ sh ./count.sh
16:40:37 1
16:40:37 1
16:41:19 1
16:41:20 2
16:41:21 2
16:41:22 2
16:41:23 2
16:41:24 1
16:41:25 2
16:41:26 2
16:41:27 2
16:41:28 1
16:41:29 2

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