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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
I'm trying to learn shell scripting, and I need to understand someone else's code. What is the $? variable hold? I can't Google search the answer because they block punctuation characters.
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Running code in main thread from another thread
In an android service I have created thread(s) for doing some background task.
16 Answers
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Set Focus on EditText
I have an EditText-Field and set an OnFocusChangeListener for it. When it has lost focus, a method is called, which checks the value of the EditText with one in the database. If the return-value of the method is true, a toast is shown and the focus should get back on the EditText again. The focus sh...
Change Bootstrap input focus blue glow
Does anyone know the how to change Bootstrap's input:focus ? The blue glow that shows up when you click on an input field?
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Automatically enter SSH password with script
I need to create a script that automatically inputs a password to OpenSSH ssh client.
19 Answers
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How to resolve git's “not something we can merge” error
I just encountered a problem when merging a branch into master in git. First, I got the branch name by running git ls-remote . Let's call that branch "branch-name". I then ran git merge branch-name command and got the following result:
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Debug code-first Entity Framework migration codes
I'm using Entity Framework code first in my website and I'm just wondering if there is any way to debug the migration codes. You know, like setting breakpoints and stuff like this.
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What's better to use in PHP, $array[] = $value or array_push($array, $value)?
What's better to use in PHP for appending an array member,
10 Answers
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Debugging App When Launched by Push Notification
I am currently developing an app that receives Push Notifications. I have this all working 100% through a PHP page. There are several different types of push notifications my app can receive. The PHP handles this and sends different packets of information to my app which are all received just fine. ...
How do I assert equality on two classes without an equals method?
Say I have a class with no equals() method, to which do not have the source. I want to assert equality on two instances of that class.
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