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Can't push to GitHub because of large file which I already deleted
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Note that if you want apply these changes to ALL branches, you need to use a --all flag instead of HEAD
– Nick Spreitzer
Apr 20 '16 at 23:42
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git diff renamed file
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The issue with the difference between HEAD^^ and HEAD is that you have an a.txt in both commits, so just considering those two commits (which is what diff does), there is no rename, there is a copy and a change.
To detect copies, you can use -C...
How to use sidebar with the keyboard in Sublime Text 2 and 3?
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Ctrl+1 is the shortcut for "Focus Group 1", but if you want to focus the group which was originally focused, use Esc instead (see the unofficial docs). For example, if group 2 is focused, and you then focus the side bar, Esc will return the focus to group 2.
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How to install APK from PC?
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If they use Gmail, you can email the APK to them, and when they receive the email in the Android Gmail client the email has an "Install" button on it. Installing apps via Gmail is very easy, however do note that before anyone...
Rake just one migration
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To expand on what Ryan says, if the table has been dropped from the database outside of Rails, rake db:migrate:up VERSION=my_version may do nothing, because the schema_migrations table still says it is has been run. In the same situation rake db:migrate:...
recursion versus iteration
...t to say that everywhere recursion is used a for loop could be used? And if recursion is usually slower what is the technical reason for ever using it over for loop iteration?
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Is there any way to put malicious code into a regular expression?
...mance degradation, but where a Thompson‐style NFA has no such problems.
If you only admit patterns that can be solved by DFAs, you can compile them up as such, and they will run faster, possibly much faster. However, it takes time to do this. The Cox paper mentions this approach and its attendant...
django urls without a trailing slash do not redirect
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"When set to True, if the request URL does not match any of the patterns in the URLconf and it doesn’t end in a slash, an HTTP redirect is issued to the same URL with a slash appended. Note that the redirect may cause any data submitted in a ...
How do I watch a file for changes?
...://timgolden.me.uk/python/win32_how_do_i/watch_directory_for_changes.html? If you only need it to work under Windows the 2nd example seems to be exactly what you want (if you exchange the path of the directory with the one of the file you want to watch).
Otherwise, polling will probably be the onl...
What's the opposite of 'make install', i.e. how do you uninstall a library in Linux?
...t of the filesystem and so will not remove previously installed software.
If you're lucky, running make uninstall will work. It's up to the library's authors to provide that, however; some authors provide an uninstall target, others don't.
If you're not lucky, you'll have to manually uninstall it...