shell记录系统中断信息

#!/bin/bash

PNAME="rtc"
LOG="/mnt/disk/log/intrupt.log"
LOG_BACK="/mnt/disk/log/intrupt.log.1"
LOG_SIZE="100"
function get_int()
{
    while true
    do
    date +%F,%T >> $LOG
    i=0
    while [ $i -ne 10 ]
    do
        sleep 1
        let "i += 1"
        grep "${PNAME}" /proc/interrupts >> $LOG
    done

    done
}

function check_file()
{
    while true
    do
    sleep 2
    size=`du -s $LOG|awk '{print $1}'`
    if [ $size -gt 1000 ]
    then
        mv $LOG $LOG_BACK
    fi
    done
}

check_file &
get_int