#!/bin/bash
# ログファイルのパスを指定
LOGFILE="/tmp/sample_maillog.txt"
# 出力ファイル名を生成する関数（ファイル名に日付を付ける）
generate_output_filename() {
local current_date=$(date +%Y%m%d)
echo "bounce_report_${current_date}.txt"
}
# バウンスログを集計してファイルに保存する関数
collect_bounce_logs() {
local logfile=$1
local output_file=$2
# バウンスログを抽出して集計
grep "status=bounced" $logfile | awk '
{
# メールアドレスとバウンス理由を抽出
if ($0 ~ /to=<[^>]+>/) {
match($0, /to=<[^>]+>/);
email = substr($0, RSTART+4, RLENGTH-5);
}
if ($0 ~ /status=bounced.*\((.*)\)/) {
match($0, /status=bounced.*\((.*)\)/, arr);
reason = arr[1];
}
if (email && reason) {
# バウンスメールアドレスと理由をキーにカウント
bounce[email "|" reason]++;
email = ""; reason = "";
}
}
END {
# 一時ファイルに出力する
for (key in bounce) {
split(key, arr, "|");
printf "%-10s | %-30s | %s\n", bounce[key], arr[1], arr[2];
}
}' | sort -nr > $output_file # 回数でソートして出力
}
# メイン処理
main() {
# 出力ファイル名を生成
output_file=$(generate_output_filename)
# バウンスログを集計
collect_bounce_logs $LOGFILE $output_file
# 完了メッセージ
echo "バウンスログの集計が完了しました。出力ファイル: $output_file"
}
# スクリプトの実行
main
こんな感じで出力
54 | user2@example.com | host mail.example.com said: 550 5.1.1 <user2@example.com>: user unknown 51 | user4@example.com | host mail.example.com said: 550 5.1.1 <user4@example.com>: spam detected 49 | user4@example.com | host mail.example.com said: 550 5.1.1 <user4@example.com>: connection timed out 44 | user5@example.com | host mail.example.com said: 550 5.1.1 <user5@example.com>: user unknown 44 | user5@example.com | host mail.example.com said: 550 5.1.1 <user5@example.com>: host not found 44 | user4@example.com | host mail.example.com said: 550 5.1.1 <user4@example.com>: mailbox full 44 | user1@example.com | host mail.example.com said: 550 5.1.1 <user1@example.com>: mailbox full 43 | user3@example.com | host mail.example.com said: 550 5.1.1 <user3@example.com>: spam detected 42 | user3@example.com | host mail.example.com said: 550 5.1.1 <user3@example.com>: user unknown 42 | user1@example.com | host mail.example.com said: 550 5.1.1 <user1@example.com>: user unknown 41 | user4@example.com | host mail.example.com said: 550 5.1.1 <user4@example.com>: user unknown 41 | user2@example.com | host mail.example.com said: 550 5.1.1 <user2@example.com>: spam detected 40 | user2@example.com | host mail.example.com said: 550 5.1.1 <user2@example.com>: host not found 40 | user1@example.com | host mail.example.com said: 550 5.1.1 <user1@example.com>: connection timed out 39 | user5@example.com | host mail.example.com said: 550 5.1.1 <user5@example.com>: mailbox full 39 | user5@example.com | host mail.example.com said: 550 5.1.1 <user5@example.com>: connection timed out 38 | user1@example.com | host mail.example.com said: 550 5.1.1 <user1@example.com>: spam detected 37 | user3@example.com | host mail.example.com said: 550 5.1.1 <user3@example.com>: connection timed out 35 | user5@example.com | host mail.example.com said: 550 5.1.1 <user5@example.com>: spam detected 35 | user4@example.com | host mail.example.com said: 550 5.1.1 <user4@example.com>: host not found 35 | user2@example.com | host mail.example.com said: 550 5.1.1 <user2@example.com>: mailbox full 33 | user3@example.com | host mail.example.com said: 550 5.1.1 <user3@example.com>: host not found 31 | user3@example.com | host mail.example.com said: 550 5.1.1 <user3@example.com>: mailbox full 31 | user1@example.com | host mail.example.com said: 550 5.1.1 <user1@example.com>: host not found 28 | user2@example.com | host mail.example.com said: 550 5.1.1 <user2@example.com>: connection timed out
