#!/bin/sh
page=0
echo > 3.txt
for (( page = 0; page < 70; page=page+10)) do urlStr="http://www.baidu.com/s?wd=keyword%20site%3Aicaifu.com&pn=”$page”&rsv_spt=1&issp=1&f=8&rsv_bp=0&rsv_idx=2&ie=utf-8″
2014-12-09
bash shell script sample
用来提取sql中的两个变量值
sql：UPDATE XXXX SET `SEQ` = ‘123456’, yyy=’xxx’ where SEQ = 123457
#!/bin/sh
int_regex=([0-9]+)
grep UPDATE pg.sql |grep HK_SAKCHMJSHH|while read line
do
first_seq_pos=`echo $line|awk ‘{print index($0,”x60SEQx60 = x27″)}’`
second_seq_pos=`echo $line|awk ‘{print index($0, “SEQ = “)}’`
if [ $first_seq_pos -ne $second_seq_pos ];then
((first_seq_pos=$first_seq_pos+9))
((second_seq_pos=$second_seq_pos+6))
first_seq=`echo $line |awk -v pos=”$first_seq_pos” ‘{print substr($0, pos, 8) }’`
second_seq=`echo $line |awk -v pos=”$second_seq_pos” ‘{print substr($0, pos, 8) }’`
echo $first_seq
if [[ $first_seq =~ ([0-9]+) ]];then
echo “match:”${BASH_REMATCH[1]}
fi
echo $second_seq
exit
fi
done
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2014-09-15
异常处理之ThreadException、unhandledException及多线程异常处理[转]
from:http://www.cnblogs.com/luminji/archive/2011/01/05/1926033.html
异常处理之ThreadException、unhandledException及多线程异常处理
一：ThreadException和unhandledException的区别
处理未捕获的异常是每个应用程序起码有的功能，C#在AppDomain提供了UnhandledException 事件来接收未捕获到的异常的通知。常见的应用如下：
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2014-09-11
bash flock
#!/bin/bash
{
flock -xn 3
if [ $? -ne 0 ];then
echo “Aready runing…”
exit 1
fi
do some thing here
} 3<>/tmp/`basename $0`.lock
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bash执行命令各种情况分析
from: http://blog.csdn.net/smstong/article/details/18352619
Linux系统中的可执行文件有多少种类？bash环境下是如何执行程序的？下面逐一分析。
1 Linux系统中可执行文件种类
1.1 二进制可执行文件
这种文件是最常见的，如/bin/ls，/sbin/ifconfig, /bin/cat等等。
[root@notebook135 ~]# file /bin/ls /bin/cat /sbin/ifconfig
/bin/ls: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
/bin/cat: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
/sbin/ifconfig: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
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