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Rails Root directory path?
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In Rails 3 and newer:
Rails.root
which returns a Pathname object. If you want a string you have to add .to_s. If you want another path in your Rails app, you can use join like this:
Rails.root.join('app', 'assets', 'images', 'logo.p...
Quick way to create a list of values in C#?
...r" };
This uses two features of C# 3.0: type inference (the var keyword) and the collection initializer for lists.
Alternatively, if you can make do with an array, this is even shorter (by a small amount):
var arr = new [] { "foo", "bar" };
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What are .a and .so files?
I'm currently trying to port a C application to AIX and am getting confused. What are .a and .so files and how are they used when building/running an application?
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List of Java processes
How can I list all Java processes in bash?
I need an command line. I know there is command ps but I don't know what parameters I need to use.
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find first sequence item that matches a criterion [duplicate]
What would be the most elegant and efficient way of finding/returning the first list item that matches a certain criterion?
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Auto select file in Solution Explorer from its open tab
...king on a project. Many times, I find myself right-clicking on a tab title and searching for Show/Select/Scroll-to this file in Solution Explorer , and I can't find it.
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Download a file with Android, and showing the progress in a ProgressDialog
...t gets updated. For this I need a simple function that can download a file and show the current progress in a ProgressDialog . I know how to do the ProgressDialog , but I'm not sure how to display the current progress and how to download the file in the first place.
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www-data permissions?
So I have a directory in /var/www (called cake) and I need to allow www-data to write to it, but I also want to write to it (without having to use sudo). I'm afraid to change the permissions to 777 in case some other user on my machine (or a hacker) attempts to modify files in that directory. How do...
Android app in Eclipse: Edit text not showing on Graphical layout
I am trying to add a text field onto my Android app in Eclipse, but then I drag the Plain text option on to the graphical layout, a message at the bottom comes up. It reads
Exception raised during rendering: java.lang.System.arraycopy([CI[CII)V
Exception details are logged in Window > Show Vie...
How do I start a process from C#?
...er the process including scheduling, the type of the window it will run in and, most usefully for me, the ability to wait for the process to finish.
using System.Diagnostics;
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Process process = new Process();
// Configure the process using the StartInfo properties.
process.StartInfo.FileName = "...