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Rails select helper - Default selected value, how?
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This should do it:
<%= f.select :project_id, @project_select, :selected => params[:pid] %>
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git difftool, open all diff files immediately, not in serial
The default git diff behavior is to open each diff file in serial (wait for previous file to be closed before opening next file).
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How to output only captured groups with sed?
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you can use grep
grep -Eow "[0-9]+" file
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C# Stream流使用总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...文章简单总结了在C#编程中经常会用到的一些流。比如说FileStream、MemoryStream、 BufferedStream、 NetWorkStream、 StreamReader StreamWriter、 TextReader TextWriter等的简单用法。一、FileStream类
FileStream类主要用于读取磁盘上的文件或者向磁盘文件...
How to get an array of specific “key” in multidimensional array without looping
Let's assume I have the following multidimensional array (retrieved from MySQL or a service):
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Wildcards in a Windows hosts file
...b. It creates a proxy DNS server (on your own computer) with its own hosts file. The hosts file accepts wildcards.
Download from the offical website
http://mayakron.altervista.org/support/browse.php?path=Acrylic&name=Home
Configuring Acrylic DNS Proxy
To configure Acrylic DNS Proxy, install ...
Android Writing Logs to text File
I'm Trying to Write Logs to Custom Log.txt File on Android File using this code of Mine but then this method creates file but contains nothing. Basically I want to read previous contents of the file and then append my data with the existing content.
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How to add jQuery in JS file
...orting tables. Since the code is common in most pages I want to make a JS file which will have the code and all the pages using it can reference it from there.
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SVN repository backup strategies
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Using 7Zip: svnadmin dump repositorypath | "%ProgramFiles%\7-Zip\7z.exe" a backup.7z -sibackupname.svn This will create a file named 'backup.7z' that contains a single file, 'backupname.svn', which is the output from svnadmin dump.
– Matt
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Using printf with a non-null terminated string
... output the first chars (number defined in number_of_chars variable ) to a file, in this case to stdout (the standard output, your screen)!
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