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How can I get the current user's username in Bash?
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In some cases, $USER is not set at all. Worse, it is just an environment variable, so it can be overridden by the user: USER=thisisnotmyname bash -c 'echo $USER' # prints thisisnotmyname
– sitaktif
Dec 17 '15 at 13:20
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Making the main scrollbar always visible
...y alternatives to "page jumping" when certain pages on your site are too small to have a scroll bar and others are? Or is this the "best practice"? I'll have to admit, I don't see many pages out on the webs that don't take up a full page.
– Jess
Sep 26 '13 at...
How to allow to accept only image files?
...t is very sketchy on mobiles (as of 2015) and by some reports this may actually prevent some mobile browsers from uploading anything at all, so be sure to test your target platforms well.
For detailed browser support, see http://caniuse.com/#feat=input-file-accept
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Any idea why I need to cast an integer literal to (int) here?
...In general, you should not cast to Integer class. This involves something called auto-boxing, and can cause some subtle errors in your code.
The prefered method of doing what you want is:
Integer i6 = Integer.valueOf(-128)
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What is the difference between ELF files and bin files?
...ded loader format ELf file ,what is the difference between the two , especially the utility of ELF file.
4 Answers
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How can I auto-elevate my batch file, so that it requests from UAC administrator rights if required?
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You can have the script call itself with psexec's -h option to run elevated.
I'm not sure how you would detect if it's already running as elevated or not... maybe re-try with elevated perms only if there's an Access Denied error?
Or, you could simp...
Creating your own header file in C
... I was wondering if you could elaborate on how to compile with all required files and not have to include foo.c into gcc program argument. What is this technique called or what program can accomplish this outside of IDE - Make comes to my mind
– nf071590
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How do I 'git diff' on a certain directory?
git diff actually runs a diff on all source code. How do I do this on a certain directory, so that I can view modifications on files underneath it?
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How to disable XDebug
I think that my server became slow since I installed XDebug.
So, in order to test my hypothesis I want to disable XDebug completely.
I've been searching for tutorials on how to do this but I can't find such information.
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Serializing PHP object to JSON
...ata->getJsonData());. In essence, implement the function from 5.4, but call it by hand.
Something like this would work, as get_object_vars() is called from inside the class, having access to private/protected variables:
function getJsonData(){
$var = get_object_vars($this);
foreach ($va...