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Unix command to find lines common in two files

... @ferdy (Repeating my comment from your answer, as yours is essentially a repeated answer posted as a comment) grep does some weird things you might not expect. Specifically, everything in 1.txt will be interpreted as a regular expression and not a plain string. Also, any blank line in 1.txt...
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Value of i for (i == -i && i != 0) to return true in Java

...exception : The most negative number in two's complement is sometimes called "the weird number," because it is the only exception. Of course you have the same phenomenon for Long.Min_Value if you store it in a long variable. Note that this is only due to choices that were made regarding the...
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Why does ContentResolver.requestSync not trigger a sync?

...n I trigger it from the Dev Tools Sync Tester application, however when I call ContentResolver.requestSync(account, authority, bundle) from my ContentProvider, my sync is never triggered. ...
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Crontab - Run in directory

...t I would like it to execute it from a particular directory so it can find all the files it needs, since the application has a bunch of relative paths. ...
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Measure the time it takes to execute a t-sql query

... for testing and it takes way too long to run. I canceled at 7 minutes and all the timers added up was only about 2 minutes. So I think there is some return text cache issue or maybe it takes too long to calculate all the datediffs for so many. – M H Apr 29 '16...
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AngularJS: Injecting service into a HTTP interceptor (Circular dependency)

...ependency of $http on the AuthService. I believe that what you did is actually the simplest way of doing it. You could also do this by: Registering the interceptor later (doing so in a run() block instead of a config() block might already do the trick). But can you guarantee that $http hasn't b...
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Should I call Close() or Dispose() for stream objects?

... StreamWriter etc implements IDisposable interface. That means, we can call Dispose() method on objects of these classes. They've also defined a public method called Close() . Now that confuses me, as to what should I call once I'm done with objects? What if I call both? ...
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Test if a command outputs an empty string

...one want to use the -l switch which means "use a long listing format" when all you want is test if there is any output or not, anyway? So most of the answers here are simply incorrect. Second problem The second problem is that while some answers work fine (those that don't use ls -al or ls -Al bu...
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How to flip background image using CSS?

... You can flip it horizontally with CSS... a:visited { -moz-transform: scaleX(-1); -o-transform: scaleX(-1); -webkit-transform: scaleX(-1); transform: scaleX(-1); filter: FlipH; -ms-filter: "FlipH"; } jsFiddle. If you want ...
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Indent starting from the second line of a paragraph with CSS

... Is it literally just the second line you want to indent, or is it from the second line (ie. a hanging indent)? If it is the latter, something along the lines of this JSFiddle would be appropriate. div { padding-left: ...