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How to reset or change the MySQL root password?

How do I change the MySQL root password and username in ubuntu server? Do I need to stop the mysql service before setting any changes? ...
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How to delete files older than X hours

...all files with my find. My fault for not checking this first, but this command just deleted most of my home directory. For me, --mmin -X is the correct argument. – brandones Oct 16 '13 at 0:08 ...
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DateTime.Now vs. DateTime.UtcNow

...nciples of how the two properties work. I know the second one is universal and basically doesn't deal with time zones, but can someone explain in detail how they work and which one should be used in what scenario? ...
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Keystore type: which one to use?

... There are a few more types than what's listed in the standard name list you've linked to. You can find more in the cryptographic providers documentation. The most common are certainly JKS (the default) and PKCS12 (for PKCS#12 files, often with extension .p12 or sometimes .pfx). ...
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Checking for NULL pointer in C/C++ [closed]

...ol NULL. They do not expose the opportunity for the accidental assignment. And they are clear and succinct. Edit: As SoapBox points out in a comment, they are compatible with C++ classes such as auto_ptr that are objects that act as pointers and which provide a conversion to bool to enable exactly...
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Hex representation of a color with alpha channel?

Is there a W3 or any other noteworthy standard on how to represent a color (including alpha channel) in hex format? 5 Answe...
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How do I check if string contains substring? [duplicate]

I have a shopping cart that displays product options in a dropdown menu and if they select "yes", I want to make some other fields on the page visible. ...
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How to dismiss a Twitter Bootstrap popover by clicking outside?

...== 0) { $(this).popover('hide'); } }); }); This handles closing of popovers already open and not clicked on or their links have not been clicked. Update: Bootstrap 3.3.6, see fiddle Fixes issue where after closing, takes 2 clicks to re-open $(document).on('click', fun...
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Margin while printing html page

... am using a separate style-sheet for printing. Is it possible to set right and left margin in the style-sheet which set the print margin (i.e. margin on paper). ...
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Regex for string not ending with given suffix

...sily extend this with other characters, since this checking for the string and isn't a character class. .*(?<!ab)$ This would match anything that does not end with "ab", see it on Regexr share | ...