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转载：libCurl
- 博客分类：
- c/c++
原文地址：http://curl.haxx.se/libcurl/c/libcurl-tutorial.html
译者：JGood(http://blog.csdn.net/JGood )
译者注：这是一篇介绍如何使用libcurl的入门教程。文档不是逐字逐句按原文翻译，而是根据笔者对libcurl的理解，参考原文写 ...
删除所有.svn文件夹的批处理
- 博客分类：
- bat
@echo off
echo ... begin ...
for /D /R %%i in (.svn) do (
rd /s /q "%%i" 2>nul
)
echo ... done ...
echo.
pause
#!/bin/bash
#参数校验
if [ $# -ne 1 ]; then
echo -e "\033[40;31;1mplease input your filename!\033[0m"
exit 1
elif [ ! -f $1 ]; then
echo -e "\033[40;31;1mfile:$1 doesn't exist!\033[0m"
exit 1
fi
file_name=$1
#总行数
all_num=`sed -n "$"= $file_name`
#注释行数
...
获取项目中所有makefile文件
- 博客分类：
- makefile
#!/bin/bash
# 说明在DIVISON目录下执行，用于获取所有makefile文件，结果会按原目录结构保存
function back_makes
{
# 删除残留makes目录
rm -rf makes/
local MAKS=`find . -type f -name "*.mak"`
local MAKS="${MAKS} `find . -type f -name "[mM]ake[fF]ile"`"
for f in $MAKS
do
# find得到的文件可能是绝对路 ...
一道面试题:AABCC输出为：A2B1C2
- 博客分类：
- c/c++
#include <stdio.h>
#include <stdlib.h>
// A2B2C2A2
void deal( const char *pIn, char *pOut)
{
const char *tmpIn;
char *tmpOut;
char count; // 字符计数器
char preCh; // 前一个字符
char curCh; // 当前字符
tmpIn = pIn;
tmpOut = pOut;
count = '1';
preCh = *tmpIn;
while (*tmpIn ...
http://download-west.oracle.com/docs/cd/B10501_01/server.920/a90842/ch13.htm#1011230
sure you are all familiar with this situation:
SQL> alter system kill session '152,33';
alter system kill session '152,33'
*
ERROR at line 1:
ORA-00031: session marked for kill
The session trying to issue the kill will hang for 60 seconds and then return this “session marked for kill” messag ...
http://linux.chinaunix.net/bbs/viewthread.php?tid=224780
#!/bin/bash
if [ ! $# -eq 1 ];then
echo "need only one param!"
exit 1
fi
cat /etc/passwd | awk -F: '{print $1}' | grep -w $1
if [ $? -eq 1 ];then
su - << huawei
userdel -rf $1 1>> ok.log 2>> fail.log
fi
------------------------------------------------- ...
//返回验证图片，并将验证码保存到session中
public void getImage(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
response.setContentType("image/jpeg");
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-C ...
String[] targetArray = targetIds.split("\\@");
String[] arr = sql.split("\\?");
String[] arr = sql.split("\\|");
Class.forName("oracle.jdbc.OracleDriver");
return java.net.URLEncoder.encode(msg, "UTF-8");
native2ascii -encoding gb2312 config_ ...
在含有子查询的SQL语句中,要特别注意减少对表的查询.
Update 多个Column 例子:
低效:
UPDATE EMP
SET EMP_CAT = (SELECT MAX(CATEGORY) FROM EMP_CATEGORIES),
SAL_RANGE = (SELECT MAX(SAL_RANGE) FROM EMP_CATEGORIES)
WHERE EMP_DEPT = 0020;
高效:
UPDATE EMP
...
//查看当前用户的缺省表空间
SQL>select username,default_tablespace from user_users;
//查看当前用户的角色
SQL>select * from user_role_privs;
//查看当前用户的系统权限和表级权限
select * from user_sys_privs;
select * from user_tab_privs;
//查看表的相关信息，如大小，所属表空间
select * from user_segments t order by t.segment_type;
//查看索 ...
#输出换行符
echo -e "ok\r\n"
#可见expr的优点
smInt=`expr $swapmemory / 1000000`
fileLen=`expr length $filename`
-------------------------------------------------------------------------------------------
#如何取得本机的IP：
auto_get_IP()
{
HOSTNAME=`hostname`
myIp=`grep $HOSTNAME /etc/ ...