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top命令使用详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...,直到用户终止该程序为止. 比较准确的说,top命令提供了实时的对系统处理器的状态监视.它将显示系统中CPU最“敏感”的任务列表.该命令可以按CPU使用.内存使用和执行时间对任务进行排序；而且该命令的很多特性都可以通过交...
Is there a way to stop Google Analytics counting development work as hits?
I have added the JavaScript that I need to the bottom of my pages so that I can make use of Google Analytics. Only problem is that I am sure that it is counting all my development work as hits. Seeing as I probably see some of those pages a hundred times a day it will really skew my readings. Is the...
Custom domain for GitHub project pages
...99.111.153
Check the Github docs to confirm these are the most up-to-date IPs.
Create a CNAME record to point www.example.com to YOUR-GITHUB-USERNAME.github.io.
This is the most confusing part.
Note the YOUR-GITHUB-USERNAME NOT the GitHub repo name! The value of YOUR-GITHUB-USERNAME is determine...
Check status of one port on remote host [closed]
...or Windows, Linux, and Mac OS X.
For example, check for telnet on a known ip:
nmap -A 192.168.0.5/32 -p 23
For example, look for open ports from 20 to 30 on host.example.com:
nc -z host.example.com 20-30
share
...
技术和资本玩转创客圈 英特尔在中国的动作才刚刚开始 - 资讯 - 清泛网 - 专...
...交创意研发需求后，硬享公社随即对合作伙伴的资源进行实时分析与匹配，然后“牵线搭桥”。
在英特尔副总裁兼渠道销售事业部总经理Rick Dwyer的演示过程中，硬享公社成功帮一名国外的创客找到了一家与其志同道合的中国的...
Select datatype of the field in postgres
...QL allows you to have the same table name (even an identical table) in multiple schemas. The robust way to write that WHERE clause considers that possibility: where table_catalog = ? and table_schema = ? and table_name = ?; But this information_schema view doesn't consider that the DDL might have us...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
...ed, but that is per client per server port, and needs clarifying.
Each TCP/IP packet has basically four fields for addressing. These are:
source_ip source_port destination_ip destination_port
< client > < server >
Inside the TCP stack, these four fields a...
Get the IP address of the remote host
... class, which contains ServerVariables property which can provide us the IP address from REMOTE_ADDR property value.
5 ...
print call stack in C or C++
...ce with demangled function & method names.
std::string backtrace(int skip = 1)
{
void *callstack[128];
const int nMaxFrames = sizeof(callstack) / sizeof(callstack[0]);
char buf[1024];
int nFrames = backtrace(callstack, nMaxFrames);
char **symbols = backtrace_symbols(callstack...
How to connect to Mysql Server inside VirtualBox Vagrant?
...here to comment), this command can be used in something like an Ansible script to automate granting root user permissions: mysql -e "create user 'root'@'10.0.2.2' identified by 'vagrant'; grant all privileges on *.* to 'root'@'10.0.2.2' with grant option; flush privileges;"
– K...