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Freeing up a TCP/IP port?
...to see all of the processes listening for http requests on port 80 (run as root or use sudo):
# fuser 80/tcp
If you want to kill them, then just add the -k option.
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Semicolons superfluous at the end of a line in shell scripts?
... on terminal or in shell script.
See the below examples:
On terminal:
[root@server test]# ls;pwd;
On shell script:
[root@server test]# cat test4.sh
echo "Current UserName:"
whoami
echo -e "\nCurrent Date:";date;
[root@server test]#
But I am not agree with the comment that & is equi...
Sequelize.js delete query?
...#L207-217
https://github.com/sdepold/sequelize/blob/master/lib/connectors/mysql/query-generator.js
What I found:
There isn't a deleteAll method, there's a destroy() method you can call on a record, for example:
Project.find(123).on('success', function(project) {
project.destroy().on('success',...
Creating a URL in the controller .NET MVC
...rContext.RequestContext, System.Web.Routing.RouteTable.Routes, "My link", "Root", "About", "Home", null, null);
Intellisense will give you the meaning of each of the parameters.
Update from comments: controller already has a UrlHelper:
string url = this.Url.Action("About", "Home", null);
...
推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...显然匹配前两个词都不如直接匹配英超来得准确，系统该如何体现出关键词的这种“重要性”呢？这时我们便可以引入词权的概念。在大量的语料库中通过计算（比如典型的TF-IDF算法），我们可以算出新闻中每一个关键词的权重...
How do you open an SDF file (SQL Server Compact Edition)? [closed]
...
Download and install LINQPad, it works for SQL Server, MySQL, SQLite and also SDF (SQL CE 4.0).
Steps for open SDF Files:
Click Add Connection
Select Build data context automatically and Default (LINQ to SQL), then Next.
Under Provider choose SQL CE 4.0.
Under Database with At...
Where are my postgres *.conf files?
...
@A-B-B "...accessible exclusively by root, postgres, or the products user only." Run it as root and it's reliable.
– dhaupin
Sep 8 '16 at 15:49
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What is the difference between “Flush Magento Cache” and “Flush Cache Storage” in magento's cache ma
...y the columns of a table (add or remove column) because magento executes a mysql DESCRIBE query and then saves the result in cache.
This cache is not cleared if you only click on "Flush Magento Cache" button.
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grep exclude multiple strings
...s particulary usefull when you have a long list of things to exclude.
vi /root/scripts/exclude_list.txt
Now add what you would like to exclude
Nopaging the limit is
keyword to remove is
Now use grep to remove lines from your file log file and view information not excluded.
grep -v -f /root/sc...
Convert seconds to Hour:Minute:Second
...ime::__construct(), DateTime::modify(), clone,
sprintf()
Run the Demo
MySQL example range of the result is constrained to that of the TIME data type, which is from -838:59:59 to 838:59:59 :
SELECT SEC_TO_TIME(8525);
# 02:22:05
See: SEC_TO_TIME
Run the Demo
PostgreSQL example:
SELECT TO_...