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How do I use Ruby for shell scripting?
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By default, you already have access to Dir and File, which are pretty useful by themselves.
Dir['*.rb'] #basic globs
Dir['**/*.rb'] #** == any depth of directory, including current dir.
#=> array of relative names
File.expand_path('~/file.txt') #=> "/User/mat/...
A non well formed numeric value encountered
I have a form that passes two dates (start and finish) to a PHP script that will add those to a DB. I am having problems validating this. I keep getting the following errors
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Downloading Java JDK on Linux via wget is shown license page instead
...M 9th June 2012
If you are looking to download the Oracle JDK from the command line using wget, there is a workaround. Run the wget command as follows:
wget --no-cookies --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com" "http://download.oracle.com/otn-pub/java/jdk/7/jdk-7-linux-x64.tar.gz"
Be ...
Favicon not showing up in Google Chrome [duplicate]
...che. http://support.google.com/chrome/bin/answer.py?hl=en&answer=95582 And test another browser.
Some where able to get an updated favicon by adding an URL parameter: ?v=1 after the link href which changes the resource link and therefore loads the favicon without cache (thanks @Stanislav).
&l...
Android: ProgressDialog.show() crashes with getApplicationContext
...e you using? If I'm right about what the problem is then this was fixed in Android 1.6 (API version 4).
It looks like the object reference that getApplicationContext() is returning just points to null. I think you're having a problem similar to one I had in that some of the code in the onCreate() i...
How to get indices of a sorted array in Python
... 2), (2, 3), (3, 100), (4, 5)]
You sort the list by passing it to sorted and specifying a function to extract the sort key (the second element of each tuple; that's what the lambda is for. Finally, the original index of each sorted element is extracted using the [i[0] for i in ...] list comprehens...
PHP array_filter with arguments
... page. The idea is that you create an object with the desired state ($num) and the callback method (taking $i as an argument):
class LowerThanFilter {
private $num;
function __construct($num) {
$this->num = $num;
}
function isLower($i) {
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Changing the current working directory in Java?
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i don't think i've found a single difference between java and c# that makes me think, "those java guys sure know what they're doing"
– Jake
Feb 22 '12 at 21:05
2
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Can Rails Routing Helpers (i.e. mymodel_path(model)) be Used in Models?
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In Rails 3, 4, and 5 you can use:
Rails.application.routes.url_helpers
e.g.
Rails.application.routes.url_helpers.posts_path
Rails.application.routes.url_helpers.posts_url(:host => "example.com")
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How do I concatenate two lists in Python?
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does this create a deep copy of listone and appends listtwo?
– Daniel F
Apr 19 '12 at 12:34
160
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