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How do I prompt for Yes/No/Cancel input in a Linux shell script?

I want to pause input in a shell script, and prompt the user for choices. The standard Yes , No , or Cancel type question. How do I accomplish this in a typical bash prompt? ...
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The input is not a valid Base-64 string as it contains a non-base 64 character

I have a REST service that reads a file and sends it to another console application after converting it to Byte array and then to Base64 string. This part works, but when the same stream is received at the application, it gets manipulated and is no longer a valid Base64 string. Some junk characters ...
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nonlocal keyword in Python 2.x

I'm trying to implement a closure in Python 2.6 and I need to access a nonlocal variable but it seems like this keyword is not available in python 2.x. How should one access nonlocal variables in closures in these versions of python? ...
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Merge multiple lines (two blocks) in Vim

I'd like to merge two blocks of lines in Vim, i.e. take lines n..m and append them to lines a..b . If you prefer a pseudocode explanation: [a[i] + b[i] for i in min(len(a), len(b))] ...
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How to create .ipa file using Xcode?

...lick Product > Archive > once this is complete open up the Organiser and click the latest version. Step 3: Click on Export... option from right side of organiser window. Step 4: Select a method for export > Choose correct signing > Save to Destination. Xcode 10.0 Step 3: From R...
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Quickly find whether a value is present in a C array?

...ate through an array of size 256 (preferably 1024, but 256 is the minimum) and check if a value matches the arrays contents. A bool will be set to true is this is the case. ...
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How to remove elements from a generic list while iterating over it?

...er pattern for working with a list of elements which each need processed and then depending on the outcome are removed from the list. ...
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Divide a number by 3 without using *, /, +, -, % operators

... because: n = 4 * a + b n / 3 = a + (a + b) / 3 So sum += a, n = a + b, and iterate When a == 0 (n < 4), sum += floor(n / 3); i.e. 1, if n == 3, else 0 share | improve this answer |...
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How do I execute a string containing Python code in Python?

...ting code should generally be the position of last resort: It's slow, ugly and dangerous if it can contain user-entered code. You should always look at alternatives first, such as higher order functions, to see if these can better meet your needs. ...
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Sort array of objects by string property value

...are function body: return a.value - b.value; (ASC) – Andre Figueiredo Jan 8 '14 at 12:06 23 @Cerb...