指定秒間だけtcpdumpしてmk-query-digestするshell

gistfile1.eclass

#!/bin/sh

SEC=$1

tcpdump -s 65535 -nn -q -tttt -x port 3306 -l > /tmp/tcpdump.3306 2> /dev/null &
PID_3306=$!

tcpdump -s 65535 -nn -q -tttt -x port 11211 -l > /tmp/tcpdump.11211 2> /dev/null &
PID_11211=$!

do_mk_query_digest()
{
    kill PID_3306
    kill PID_11211
    sleep 1
    mk-query-digest --type tcpdump --report-all /tmp/tcpdump.3306 > /tmp/mk-query-digest.3306
    mk-query-digest --type memcached --report-all /tmp/tcpdump.11211 > /tmp/mk-query-digest.11211
}

if [ -z $SEC ]; then
    trap 'do_mk_query_digest; exit' 1 2 3 15
    while : ; do : ; done
else
    sleep $SEC
    do_mk_query_digest
fi