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How to assign a heredoc value to a variable in Bash?

...t; 'REM' .... Where "REM" could be something like "NOTES" or "SCRATCHPAD", etc. – Beejor Dec 9 '17 at 3:35  |  show 2 more comments ...
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Two single-column indexes vs one two-column index in MySQL?

...he first three columns, and so on. If you specify the columns in the right order in the index definition, a single composite index can speed up several kinds of queries on the same table." - Multiple-Column Indexes – AlikElzin-kilaka Sep 9 '18 at 4:46 ...
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Want to find records with no associated records in Rails

...nd you can also chain this with other Arel methods: Person.without_friends.order("name").limit(10) share | improve this answer |
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Cutting the videos based on start and end time using ffmpeg

...cutting time is between key frames). Interestingly, changing the parameter order solves the problem: ffmpeg -ss 00:01:00 -to 00:02:00 -i input.mp4 -ss 00:01:00 -to 00:02:00 -c copy output.mp4. Now, however, skipping is broken and the end time is not correct (in my case). – Rap...
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Android equivalent to NSNotificationCenter

...savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_login); //subscribe to notifications listener in onCreate of activity NotificationCenter.addObserver(this, NotificationType.LoginResponse, loginResponseReceiver); } @O...
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How do I update a formula with Homebrew?

... installed. It then symlinks the latest version into $HOMEBREW_PREFIX/bin, etc. Running brew cleanup mongodb will delete the old version. – mipadi Dec 24 '10 at 4:57 add a com...
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When to catch java.lang.Error?

... Very rarely. I'd say only at the top level of a thread in order to ATTEMPT to issue a message with the reason for a thread dying. If you are in a framework that does this sort of thing for you, leave it to the framework. ...
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How do you debug PHP scripts? [closed]

... Platform. That gives proper debugging, breakpoints/stepping over the code etc., although at a price. share answered Aug 3 '08 at 23:20 ...
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How do I mock an open used in a with statement (using the Mock framework in Python)?

...ll(). You can also use handle.write.call_args_list to get each call if the order is important. – Rob Cutmore Sep 16 '15 at 13:28 ...
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Why is Swift compile time so slow?

... with high accuracy whether your refactorings (explicit casts, type hints, etc...) are lowering compile times for specific files or not. NOTE: technically you could also do it with xcodebuild but the output is incredibly verbose and hard to consume. ...