shell应用：统计指定格式超过n秒的数据

该脚本的应用场景是数据分析，一般作线上日志分析的人员需要观察线上数据的变化，如：

1.访问数据库的响应大于1000毫秒的sql

2.apache cookielog响应大于多少毫秒的数据

数据格式：

2010-12-14 00:01:26,427 FATAL FUNCTION_TIME - wmmad.alloffer.get 15511ms
2010-12-14 00:01:33,164 FATAL FUNCTION_TIME - wmmad.alloffer.get 14213ms
2010-12-14 00:02:31,021 FATAL FUNCTION_TIME - wmmad.alloffer.get 14126ms
2010-12-14 00:05:08,160 FATAL FUNCTION_TIME - wmmad.alloffer.get 15295ms
2010-12-14 00:24:00,372 ERROR FUNCTION_TIME - wmmad.offer.repost 406ms

脚本：

#/bin/bash

# author: madding.lip
# date 2010.12.14
# 统计超n毫秒的数据量

ERROR_USAGE=1

if [ $# != 2 ]; then
    echo "Usage: $0 file times";
    exit $ERROR_USAGE
fi

myfile=$1
mytime=$2


all=0
count=0;

data=`cat $myfile | awk '{print $7}' | sed 's/ms//g'`;

for i in $data ;
do 
    all=$(( $all + 1 ));
    if test $(( $mytime < $i )) -eq 1 ;then
#        echo $i; sleep 1;
        count=$(( $count + 1 )); 
    fi
done;

echo "response time over ${mytime}ms: "$count" times"
echo "all count: "$all" times"

具体根据数据格式作调整即可。