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Test if a variable is set in bash when using “set -o nounset”
...ash
$ /bin/bash --version | head -1
GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu)
$ set -o nounset
If you want a non-interactive script to print an error and exit if a variable is null or not set:
$ [[ "${HOME:?}" ]]
$ [[ "${IAMUNBOUND:?}" ]]
bash: IAMUNBOUND: parameter null or no...
Should I write script in the body or the head of the html? [duplicate]
...//encosia.com/2010/08/18/dont-let-jquerys-document-ready-slow-you-down/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+Encosia+%28Encosia%29
the other answers on this question present valid information as well.
use www.google.com and www.bing.com to search for related informatio...
What's onCreate(Bundle savedInstanceState)
...ed .......
http://www.gitshah.com/2011/03/how-to-handle-screen-orientation_28.html
Android provides another elegant way of achieving this. To achieve this, we have to override a method called onSaveInstanceState(). Android platform allows the users to save any instance state. Instance state can...
How to read multiple text files into a single RDD?
...n get a Buffer/List of S3 Paths :
import scala.collection.JavaConverters._
import java.util.ArrayList
import com.amazonaws.services.s3.AmazonS3Client
import com.amazonaws.services.s3.model.ObjectListing
import com.amazonaws.services.s3.model.S3ObjectSummary
import com.amazonaws.services.s3.model.L...
Why use the 'ref' keyword when passing an object?
...) {
obj = new Object();
}
public void Method2(object obj) {
obj = _privateObject;
}
The methods above does not modifies the original object.
A little modification of your example
using System;
class Program
{
static void Main(string[] args)
{
...
When a 'blur' event occurs, how can I find out which element focus went *to*?
...efox doesn't have support, but there is a ticket: bugzilla.mozilla.org/show_bug.cgi?id=687787
– sandstrom
Apr 18 '16 at 16:04
4
...
Access-Control-Allow-Origin Multiple Origin Domains?
...-----
<FilesMatch "\.(ttf|otf|eot|woff|woff2)$">
<IfModule mod_headers.c>
SetEnvIf Origin "http(s)?://(www\.)?(google.com|staging.google.com|development.google.com|otherdomain.example|dev02.otherdomain.example)$" AccessControlAllowOrigin=$0
Header add Access-Control-A...
Find object by id in an array of JavaScript objects
...t:
myArray = [{'id':'73','foo':'bar'},{'id':'45','foo':'bar'},etc.]
obj = _.find(myArray, function(obj) { return obj.id == '45' })
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ImageView - have height match width?
I have an imageview. I want its width to be fill_parent. I want its height to be whatever the width ends up being. For example:
...
Manifest merger failed : uses-sdk:minSdkVersion 14
...e on /androiddev - http://www.reddit.com/r/androiddev/comments/297xli/howto_use_the_v21_support_libs_on_older_versions/)
Another Edit
Be sure to see @murtuza's answer below regarding appcompat-v7 and upvote if it helps!
sh...