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Read a variable in bash with a default value
...rd}
echo $name
Including the default value in the prompt between brackets is a fairly common convention
What does the :-Richard part do? From the bash manual:
${parameter:-word}
If parameter is unset or null, the expansion of word is substituted. Otherwise, the value of parameter is substituted.
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What is the best way to dump entire objects to a log in C#?
...o for viewing a current object's state at runtime, I really like what the Visual Studio Immediate window gives me. Just doing a simple
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Data structure for loaded dice?
...s some probability p k of coming up when I roll it. I'm curious if there is good algorithm for storing this information statically (i.e. for a fixed set of probabilities) so that I can efficiently simulate a random roll of the die.
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Lua string to int
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edited Dec 16 '16 at 15:12
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SQL Server, convert a named instance to default instance?
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As far as I know, no. One reason is the folder structure on the hard drive; they will have a name like MSSQL10.[instancename]
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cocktail party algorithm SVD implementation … in one line of code?
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I was trying to figure this out as well, 2 years later. But I got my answers; hopefully it'll help someone.
You need 2 audio recordings. You can get audio examples from http://research.ics.aalto.fi/ica/cocktail/cocktail_en.cgi.
reference for impl...
How to set JAVA_HOME in Linux for all users
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edited May 23 '18 at 19:41
Robin Green
28.4k1313 g...
Git submodule push
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A submodule is nothing but a clone of a git repo within another repo with some extra meta data (gitlink tree entry, .gitmodules file )
$ cd your_submodule
$ git checkout master
<hack,edit>
$ git commit -a -m "commit in submodule"
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moment.js - UTC gives wrong date
...fault, MomentJS parses in local time. If only a date string (with no time) is provided, the time defaults to midnight.
In your code, you create a local date and then convert it to the UTC timezone (in fact, it makes the moment instance switch to UTC mode), so when it is formatted, it is shifted (de...
How do I handle the window close event in Tkinter?
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Tkinter supports a mechanism called protocol handlers. Here, the term protocol refers to the interaction between the application and the window manager. The most commonly used protocol is called WM_DELETE_WINDOW, and is used to define what happens wh...