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How to zero pad a sequence of integers in bash so that all have the same width?
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will produce the following output:
00010
00011
00012
00013
00014
00015
More generally, bash has printf as a built-in so you can pad output with zeroes as follows:
$ i=99
$ printf "%05d\n" $i
00099
You can use the -v flag to store the output in another variable:
$ i=99
$ printf -v j "%05d" $i...
Adding a legend to PyPlot in Matplotlib in the simplest manner possible
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What are inline namespaces for?
...ns were in the surrounding namespace (inline namespaces can be nested, so "more-nested" names percolate up all the way to the first non-inline namespace and look and act as if their declarations were in any of the namespaces in between, too).
As an example, consider the STL implementation of vector...
Position icons into circle
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2020 solution
Here's a more modern solution I use these days.
I start off by generating the HTML starting from an array of images. Whether the HTML is generated using PHP, JS, some HTML preprocessor, whatever... this matters less as the basic idea ...
Python - When to use file vs open
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to use open() instead of invoking this
constructor directly. file is more
suited to type testing (for example,
writing "isinstance(f, file)").
Also, file() has been removed since Python 3.0.
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Regular expression for exact match of a string
...e the correct way in this case. But if you wish to match an exact word the more elegant way is to use '\b'. In this case following pattern will match the exact phrase'123456'.
/\b123456\b/
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How to not run an example using roxygen2?
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33
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What's the difference between Html.Label, Html.LabelFor and Html.LabelForModel
...ives you a label for an input whose name matches the specified input text (more specifically, for the model property matching the string expression):
// Model
public string Test { get; set; }
// View
@Html.Label("Test")
// Output
<label for="Test">Test</label>
Html.LabelFor gives yo...
How do I run a program with a different working directory from current, from Linux shell?
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97
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Google Authenticator available as a public service?
... random, numbers the server expects.
A secure one time password system is more sophisticated than a random number generator, but the concept is similar. There are also other details to help keep the device and server in sync.
So, there's no need for someone else to host the authentication, like, s...