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Linux下追踪程序退出(崩溃)思路 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
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历史命令默认会保存1000条，如果觉得太少，可以修改/etc/profile中HISTSIZE=1000，改成你想要的值。
注意：history只针对登录用户下执行有效，即使root用户也无法得到其它用户histotry历史。当然，还是有办法记录所有登陆用户的...
基于内网外隔离的微信推送解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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端口转发配置
安装rinetd 请自行百度
编辑配置vi /etc/rinetd.conf
启动程序
pkill rinetd ##关闭进程
rinetd -c /etc/rinetd.conf ##启动转发
把这条命令加到/etc/rc.local里面就可以开机自动运行
查看状态
netstat -antup
tomca...
Linux MySql编译安装 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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cd support-files/
cp my-default.cnf /var/mysql/my.cnf
cp mysql.server /etc/rc.d/init.d/mysqld
chmod +x /etc/init.d/mysqld
chkconfig --level 345 mysqld on
#初始化数据库
/usr/local/mysql/scripts/mysql_install_db \
--defaults-file=/etc/my.cnf \
--basedir=/usr/local/mysql \
--datadir...
[解决]CTRL: PTY read or GRE write failed - 更多技术 - 清泛网 - 专注C/C++及内核技术
....XXX.XXX control connection finished
于是把打开调试模式，修改/etc/ppp/pptp-options 文件，找到
#取消如下行前#
debug
#执行
service pptpd restart
取消行前的注释，重启pptpd服务进入调试模式
分析日志后发现是logwtmp版本的与pptpd版本...
正确重置MySQL密码 - 爬虫/数据库 - 清泛IT社区，为创新赋能！
...止MySQL服务，然后使用skip-grant-tables参数启动它：shell> /etc/init.d/mysql stopshell> mysqld_safe --skip-grant-tables &此时无需授权就可以进入到MySQL命令行，使用SQL重置MySQL密码：UPDATE mysql.user SET Password=PASSWORD('...') WHERE User='...' AND Host= '...
How can I count all the lines of code in a directory recursively?
...ent, add it to one of the initialization files (~/.bashrc, ~/.bash_profile etc.).
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Cleaning up the iPhone simulator
...one app)
All the notes from others apply about being a good upgradable app etc. (I personally found this useful nonetheless b/c I have development mode switches that reload a database in a specific state I was trying to do some consistent robustness/error handling on)
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finding the type of an element using jQuery
...g $("#elementId").get(0).tagName the tagName will be in all caps - TR, DIV etc etc
– Jarede
Oct 18 '12 at 14:41
7
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Phone: numeric keyboard for text input
...int numbers”, so it isn’t suitable for credit card numbers, ZIP codes, etc.
14 Answers
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What are the most common naming conventions in C?
...typically are in lower case (in my experience) rather than the C++/Java/C#/etc convention of making the first letter a capital but I guess it's possible in C too.
C++ is more complex. I've seen a real mix here. Camel case for class names or lowercase+underscores (camel case is more common in my ex...