2013-02-28 grep + sed+sort linux BINDにQuery投げてきている機器のIP一覧を取る $ cat /var/named/log/queries.log /var/named/log/queries.log.0 | grep "client 10" | sed -e 's/.*client //' | sed -e 's/ (.*//' | sed -e 's/#.*//' | sort -u