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Ignore files that have already been committed to a Git repository [duplicate]
... untrack every file that is now in your .gitignore:
First commit any outstanding code changes, and then, run this command:
git rm -r --cached .
This removes any changed files from the index(staging area), then just run:
git add .
Commit it:
git commit -m ".gitignore is now working"
To...
How to change Vagrant 'default' machine name?
... of them to see exactly what they do.
I'm using VirtualBox 4.2.16-r86992 and Vagrant 1.3.3.
I created a directory called nametest and ran
vagrant init precise64 http://files.vagrantup.com/precise64.box
to generate a default Vagrantfile. Then I opened the VirtualBox GUI so I could see what na...
The server principal is not able to access the database under the current security context in SQL Se
...er Management Studio, everything till login is fine but when I use the command use myDatabase it gives me this error:
9 A...
How can I force users to access my page over HTTPS instead of HTTP?
...ianFaurtosh some are extracted from client headers, like HTTP_X_FORWARDED, and can be manipulated, but others like HTTPS or SERVER_PORT are set directly from the web server and should usually be safe.
– Mahn
Jun 23 '16 at 3:36
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Scala: write string to file in one statement
...ding-safe. If an exception happens in write(), close will never be called, and the file won't be closed. PrintWriter also uses the default system encoding, which is very bad for portability. And finally, this approach generates a separate class specifically for this line (however, given that Scala a...
Installing R with Homebrew
I'm trying to install R using Homebrew. I ran these commands which are recommended elsewhere on SO:
12 Answers
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How to reset AUTO_INCREMENT in MySQL?
...ue is less than the current maximum value in the
column, no error occurs and the current sequence value is not changed.
See How to Reset an MySQL AutoIncrement using a MAX value from another table? on how to dynamically get an acceptable value.
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Why does volatile exist?
...s useless (The guy never sets the value! He's nuts, get rid of that code!) and my code would proceed without having acquired the semaphore, causing problems later on.
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What is the most efficient way to store a list in the Django models?
...ed as a one-to-many foreign key relationship to a Friends table? I understand that myFriends are just strings but I would think that a better design would be to create a Friend model and have MyClass contain a foreign key realtionship to the resulting table.
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Using DISTINCT and COUNT together in a MySQL Query
... Updated the answer as it is close to become a great answer and it was syntactically incorrect.
– Rahul Tripathi
Sep 8 '14 at 10:20
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