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How do I move a file with Ruby?

...our_file', '/opt/new/location/your_file') Remember; if you are moving across partitions, "mv" will copy the file to new destination and unlink the source path. share | improve this answer ...
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Detect 7 inch and 10 inch tablet programmatically

Is there a way to programmatically find whether the device the app is installed on is a 7 inch tablet or a 10 inch tablet? ...
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Why does C++ not have reflection?

...nt: C++ makes very few guarantees about the compiled code. The compiler is allowed to do pretty much anything it likes, as long as the resulting functionality is what is expected. For example, your classes aren't required to actually be there. The compiler can optimize them away, inline everything t...
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Why does this method print 4?

... When we first get into main, the space left over is X-M. Each recursive call takes up R more memory. So for 1 recursive call (1 more than original), the memory use is M + R. Suppose that StackOverflowError is thrown after C successful recursive calls, that is, M + C * R <= X and M + C * (R + 1)...
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Automatically open Chrome developer tools when new tab/new window is opened

...ht about a defined PATH method that you could invoke from prompt. This is possible with the SendKeys command, but again, only on a new instance. And DevTools doesn't persist to new tabs. Browsing the Google Product Forums, there doesn't seem to be a built-in way to do this in Chrome. You'll have to...
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Behaviour for significant change location API when terminated/suspended?

...estion. That is, your suspended app is woken up, you don't receive any callbacks on your app delegate, instead you receive your location updates through your existing CLLocationManagerDelegate. You can detect that you are running in the background by checking the applicationState, and do limited...
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How do I create a Bash alias?

... You can add an alias or a function in your startup script file. Usually this is .bashrc, .bash_login or .profile file in your home directory. Since these files are hidden you will have to do an ls -a to list them. If you don't have one you can create one. If I remember correctly, when I...
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ViewPager with previous and next page boundaries

... Quoting myself from a blog post on this subject: The third approach comes from Dave Smith, co-author of the well-regarded book Android Recipes. He went in a very different direction, using a custom container that disabled children clipping to show more...
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What should every programmer know about security? [closed]

...pplications to be secure: Never trust any input! Validate input from all untrusted sources - use whitelists not blacklists Plan for security from the start - it's not something you can bolt on at the end Keep it simple - complexity increases the likelihood of security holes Keep your attack s...
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How to check which locks are held on a table

...other responses, sp_lock can also be used to dump full lock information on all running processes. The output can be overwhelming, but if you want to know exactly what is locked, it's a valuable one to run. I usually use it along with sp_who2 to quickly zero in on locking problems. There are multi...