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How to add a progress bar to a shell script?

When scripting in bash or any other shell in *NIX, while running a command that will take more than a few seconds, a progress bar is needed. ...
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Binary search (bisection) in Python

Is there a library function that performs binary search on a list/tuple and return the position of the item if found and 'False' (-1, None, etc.) if not? ...
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MySQL ON vs USING?

In a MySQL JOIN , what is the difference between ON and USING() ? As far as I can tell, USING() is just more convenient syntax, whereas ON allows a little more flexibility when the column names are not identical. However, that difference is so minor, you'd think they'd just do away with USI...
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Append an object to a list in R in amortized constant time, O(1)?

...oldlist, list(someobj)) In general, R types can make it hard to have one and just one idiom for all types and uses. share | improve this answer | follow | ...
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Why do we need tuples in Python (or any immutable data type)?

I've read several python tutorials (Dive Into Python, for one), and the language reference on Python.org - I don't see why the language needs tuples. ...
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Pinging servers in Python

In Python, is there a way to ping a server through ICMP and return TRUE if the server responds, or FALSE if there is no response? ...
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Why does this go into an infinite loop?

...ew MutableInt(valueBeforeIncrement); } Right? Increment the value passed and return the original value: that's the definition of the postincrement operator. Now, let's see how this behavior plays out in your example code: MutableInt x = new MutableInt(); x = postIncrement(x); postIncrement(x) ...
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How to increase the gap between text and underlining in CSS

...erline applied, is it possible to increase the distance between the text and the underline? 15 Answers ...
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What is tail call optimization?

... space as (fact 3). This is not the case with the non-tail-recursive fact, and as such large values may cause a stack overflow. share | improve this answer | follow ...
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how to draw smooth curve through N points using javascript HTML5 canvas?

...nts), but for my purposes (a drawing application), it's good enough for me and visually you can't tell the difference. There is a solution to go through all the sample points, but it is much more complicated (see http://www.cartogrammar.com/blog/actionscript-curves-update/) Here is the the drawing...