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How to print last two columns using awk
...IX say?
per:
http://www.opengroup.org/onlinepubs/009695399/utilities/awk.html
There is no direction one way or the other. Not good. gawk implies subtraction, other awks imply field number or subtraction. hmm.
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Can I change the height of an image in CSS :before/:after pseudo-elements?
...h cases
(from http://lists.w3.org/Archives/Public/www-style/2011Nov/0451.html )
Similarly, browsers show very different results on things like http://jsfiddle.net/Nwupm/1/ , where more than one element is generated. Keep in mind that CSS3 is still in early development stage, and this issue has ye...
What are Java command line options to set to allow JVM to be remotely debugged?
... by default.
http://www.oracle.com/technetwork/java/javase/9-notes-3745703.html#JDK-8041435
For remote debugging one should run program with *: in address:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:8000
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OS X: equivalent of Linux's wget
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Use curl;
curl http://127.0.0.1:8000 -o index.html
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What are the differences between git branch, fork, fetch, merge, rebase and clone?
...epts can be seen at
http://marklodato.github.com/visual-git-guide/index-en.html and
http://ndpsoftware.com/git-cheatsheet.html#loc=index
If you want a visual display of how the changes are working, you can't beat the visual tool gitg (gitx for macOS) with a GUI that I call 'the subway map' (esp. ...
How to find the mime type of a file in python?
...s more convenient now:
import mimetypes
print(mimetypes.guess_type("sample.html"))
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How do I run a Java program from the command line on Windows?
...explained well here. docs.oracle.com/javase/tutorial/deployment/jar/appman.html
– Dinesh Kumar P
Sep 27 '16 at 5:39
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How do you serve a file for download with AngularJS or Javascript?
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Just click the button to download using following code.
in html
<a class="btn" ng-click="saveJSON()" ng-href="{{ url }}">Export to JSON</a>
In controller
$scope.saveJSON = function () {
$scope.toJSON = '';
$scope.toJSON = angular.toJson($scope.dat...
Modular multiplicative inverse function in Python
...ies in Python: http://www.math.umbc.edu/~campbell/Computers/Python/numbthy.html
Here is an example done at the prompt:
m = 1000000007
x = 1234567
y = pow(x,m-2,m)
y
989145189L
x*y
1221166008548163L
x*y % m
1L
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Adding two numbers concatenates them instead of calculating the sum
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The following may be useful in general terms.
First, HTML form fields are limited to text. That applies especially to text boxes, even if you have taken pains to ensure that the value looks like a number.
Second, JavaScript, for better or worse, has overloaded the + operator wi...