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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...
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 initialise memory with new operator in C++?
I'm just beginning to get into C++ and I want to pick up some good habits. If I have just allocated an array of type int with the new operator, how can I initialise them all to 0 without looping through them all myself? Should I just use memset ? Is there a “C++” way to do it?
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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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Runnable with a parameter?
I have a need for a "Runnable that accepts a parameter" although I know that such runnable doesn't really exist.
7 Answers
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How to change an input button image using CSS?
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If you're wanting to style the button using CSS, make it a type="submit" button instead of type="image". type="image" expects a SRC, which you can't set in CSS.
Note that Safari won't let you style any button in the manner you're looking for. If you need Safari support, you'...