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Trying to SSH into an Amazon Ec2 instance - permission error
...s having wrong mod on the file.
Easily solved by executing -
chmod 400 mykey.pem
Taken from Amazon's instructions -
Your key file must not be publicly viewable for SSH to work. Use this
command if needed: chmod 400 mykey.pem
400 protects it by making it read only and only for the owner.
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Best way to clear a PHP array's values
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Like Zack said in the comments below you are able to simply re-instantiate it using
$foo = array(); // $foo is still here
If you want something more powerful use unset since it also will clear $foo from the symbol table, if...
Compare two dates with JavaScript
...ime();
var notSame = d1.getTime() !== d2.getTime();
to be clear just checking for equality directly with the date objects won't work
var d1 = new Date();
var d2 = new Date(d1);
console.log(d1 == d2); // prints false (wrong!)
console.log(d1 === d2); // prints false (wrong!)
console.log(d1 != ...
How to perform better document version control on Excel files and SQL schema files
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Since you've tagged your question with git I assume you are asking about Git usage for this.
Well, SQL dumps are normal text files so it makes perfect sense to track them with Git. Just create a repository and store them in it. When you get a new version of a file, simply overwrite it ...
Using Emacs as an IDE
Currently my workflow with Emacs when I am coding in C or C++ involves three windows. The largest on the right contains the file I am working with. The left is split into two, the bottom being a shell which I use to type in compile or make commands, and the top is often some sort of documentation ...
Case insensitive 'in'
...sername.upper() in map(str.upper, USERNAMES):
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Or, yes, you can make a custom method.
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Check if all values of array are equal
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Mamun
52.8k99 gold badges2828 silver badges4242 bronze badges
answered Feb 23 '16 at 4:34
golopotgolopot
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Is there any publicly accessible JSON data source to test with real world data? [closed]
I'm working on a JavaScript dynamically loaded tree view user control. I'd like to test it with real world data.
5 Answers
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Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]
... answered Jun 1 '12 at 14:15
Jakob BowyerJakob Bowyer
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How to read if a checkbox is checked in PHP?
How to read if a checkbox is checked in PHP?
18 Answers
18
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