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Replace a string in shell script using a variable

... If you want to interpret $replace, you should not use single quotes since they prevent variable substitution. Try: echo $LINE | sed -e "s/12345678/\"${replace}\"/g" assuming you want the quotes put in. If you don't want t...
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What's the difference between Thread start() and Runnable run()

...d creation. R1 r1 = new R1(); R2 r2 = new R2(); r1 and r2 are just two different objects of classes that implement the Runnable interface and thus implement the run() method. When you call r1.run() you are executing it in the current thread. Second example: Two separate threads. Thread t1 = ne...
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iPhone - Grand Central Dispatch main thread

... edited Feb 21 '13 at 12:39 swiftBoy 33.1k2424 gold badges125125 silver badges120120 bronze badges answered Oct 26 '11 at 16:06 ...
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How to get the last element of a slice?

... @tom10271 Yes, you can't get the last element of a slice if there's no such element, ie. if there are no elements at all. – Toni Cárdenas Aug 16 '19 at 11:20 ...
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How to set response filename without forcing “save as” dialog

...red by various discussions over at stackoverflow.com/questions/93551/… - if you have spaces in your filename, you need to have double quotes (") around your filename. If you have non-ASCII characters in your filename, you should see that other question for a discussion of what to do. ...
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C++, What does the colon after a constructor mean? [duplicate]

... constructor executes. For case #1, I assume you understand inheritance (if that's not the case, let me know in the comments). So you are simply calling the constructor of your base class. For case #2, the question may be asked: "Why not just initialise it in the body of the constructor?" The imp...
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Purpose of ESI & EDI registers?

...few operations you can only do with DI/SI (or their extended counterparts, if you didn't learn ASM in 1985). Among these are REP STOSB REP MOVSB REP SCASB Which are, respectively, operations for repeated (= mass) storing, loading and scanning. What you do is you set up SI and/or DI to point at on...
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How do you get the file size in C#?

... If you have already a file path as input, this is the code you need: long length = new System.IO.FileInfo(path).Length; share | ...
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How do I update a Linq to SQL dbml file?

... There are three ways to keep the model in sync. Delete the modified tables from the designer, and drag them back onto the designer surface from the Database Explorer. I have found that, for this to work reliably, you have to: a. Refresh the database schema in the Database Explorer (r...
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Android View.getDrawingCache returns null, only null

... null v.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight()); v.buildDrawingCache(true); Bitmap b = Bitmap.createBitmap(v.getDrawingCache()); v.s...