Homebrew: Could not symlink, /usr/local/bin is not writable
While installing `tig`, `HomeBrew` is displaying the following issues while installing a dependency: ``` Error: The `brew link` step did not complete successfully The formula built, but is not symlin...
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- 30 Oct at 07:36
Difference between spring @Controller and @RestController annotation
Difference between spring `@Controller` and `@RestController` annotation. Can `@Controller` annotation be used for both Web MVC and REST applications? If yes, how can we differentiate if it is Web MV...
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- 21 Nov at 19:36
How do I escape spaces in path for scp copy in Linux?
I want to copy a file from remote to local system. Now I'm using scp command in linux system. I have some folders or files names are with spaces, when I try to copy that file, it shows the error messa...
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- 29 Dec at 00:38
href="tel:" and mobile numbers
If I use `tel:` I should write the international phone code, like that. ``` <a href="tel:+6494461709">61709</a> ``` So far, so good, but I can't find information on how to write a cell phone number...
Encrypting & Decrypting a String in C#
What is the most modern (best) way of satisfying the following in C#? ``` string encryptedString = SomeStaticClass.Encrypt(sourceString); string decryptedString = SomeStaticClass.Decrypt(encryptedSt...
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- 1 Nov at 15:31
Prevent BODY from scrolling when a modal is opened
I want my body to stop scrolling when using the mousewheel while the Modal (from [http://twitter.github.com/bootstrap](http://twitter.github.com/bootstrap)) on my website is opened. I've tried to cal...
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- 22 Feb at 14:16
How do I configure Notepad++ to use spaces instead of tabs?
Notepad++ keeps inserting tabs which later messes up my code. This doesn't just happen when I hit the tab key, but other times as well. I want it to use 4 spaces instead of tabs. How can I make Notep...
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- 27 Jun at 20:13
Running multiple commands with xargs
``` cat a.txt | xargs -I % echo % ``` In the example above, `xargs` takes `echo %` as the command argument. But in some cases, I need multiple commands to process the argument instead of one. For exa...
How to get package name from anywhere?
I am aware of the availability of [Context.getApplicationContext()](http://developer.android.com/reference/android/content/Context.html#getApplicationContext%28%29) and [View.getContext()](http://deve...
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- 30 May at 19:2
How do I create a message box with "Yes", "No" choices and a DialogResult?
I want to make simple Yes/No choiced MessageBox, but I think it is nonsense to design a form for that. I thought I could use MessageBox, add buttons, etc. to accomplish this. It is simple, but since t...
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- 1 Mar at 18:29
Website screenshots
Is there any way of taking a screenshot of a website in PHP, then saving it to a file?
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- 9 Aug at 13:46
Do I need to explicitly call the base virtual destructor?
When overriding a class in C++ (with a virtual destructor) I am implementing the destructor again as virtual on the inheriting class, but do I need to call the base destructor? If so I imagine it's s...
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- 24 Mar at 15:52
How to stop text from taking up more than 1 line?
Is there a word-wrap or any other attribute that stops text from wrapping? I have a height, and `overflow:hidden`, and the text still breaks. Needs to work in all browsers, before CSS3.
What's the difference between a temp table and table variable in SQL Server?
In SQL Server 2005, we can create temp tables one of two ways: ``` declare @tmp table (Col1 int, Col2 int); ``` or ``` create table #tmp (Col1 int, Col2 int); ``` What are the differences betwee...
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- 28 Sep at 12:58
VSCode regex find & replace submatch math?
``` %s@{fileID: \(213[0-9]*\)@\='{fileID: '.(submatch(1)-1900)@ ``` I am using this regex search and replace command in vim to subtract a constant from each matching id. I can do the regex find in ...
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- 5 Oct at 12:24
How to check if running as root in a bash script
I'm writing a script that requires root level permissions, and I want to make it so that if the script is not run as root, it simply echoes "Please run as root." and exits. Here's some pseudocode for...
Reference requirements.txt for the install_requires kwarg in setuptools setup.py file
I have a `requirements.txt` file that I'm using with Travis-CI. It seems silly to duplicate the requirements in both `requirements.txt` and `setup.py`, so I was hoping to pass a file handle to the `i...
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- 15 Jan at 17:43
What's the difference between console.dir and console.log?
In Chrome the `console` object defines two methods that seem to do the same thing: ``` console.log(...) console.dir(...) ``` I read somewhere online that `dir` takes a copy of the object before log...
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- 14 Aug at 14:10
Replace whole line containing a string using Sed
I have a text file which has a particular line something like ``` sometext sometext sometext TEXT_TO_BE_REPLACED sometext sometext sometext ``` I need to replace the whole line above with ``` Thi...
The calling thread cannot access this object because a different thread owns it
My code is as below ``` public CountryStandards() { InitializeComponent(); try { FillPageControls(); } catch (Exception ex) { MessageBox.Show(ex.Message, "...
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- 1 Dec at 21:27
Running a cron every 30 seconds
Ok so I have a cron that I need to run every 30 seconds. Here is what I have: ``` */30 * * * * /bin/bash -l -c 'cd /srv/last_song/releases/20120308133159 && script/rails runner -e production '\''Son...
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- 19 Dec at 07:25
C# Linq Group By on multiple columns
``` public class ConsolidatedChild { public string School { get; set; } public string Friend { get; set; } public string FavoriteColor { get; set; } public List<Child> Children { get; ...
Replacing some characters in a string with another character
I have a string like `AxxBCyyyDEFzzLMN` and I want to replace all the occurrences of `x`, `y`, and `z` with `_`. How can I achieve this? I know that `echo "$string" | tr 'x' '_' | tr 'y' '_'` would wo...
Evaluate empty or null JSTL c tags
How can I validate if a `String` is null or empty using the `c` tags of `JSTL`? I have a variable of name `var1` and I can display it, but I want to add a comparator to validate it. ``` <c:out value...
What is the difference between bindParam and bindValue?
What is the difference between [PDOStatement::bindParam()](http://www.php.net/manual/en/pdostatement.bindparam.php) and [PDOStatement::bindValue()](http://www.php.net/manual/en/pdostatement.bindvalue....