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Assigning default values to shell variables with a single command in bash

... If I wanted to find this in the documentation, what would a google for? Googling with special characters like ${:-} isn't very easy. – Joshua Olson Apr 24 '13 at 18:34 ...
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Create two blank lines in Markdown

... It seems to me these tags sort of ruin my document if I want it to also look good as raw text. – Kyle Delaney Oct 25 '17 at 14:43 ...
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'Must Override a Superclass Method' Errors after importing a project into Eclipse

Anytime I have to re-import my projects into Eclipse (if I reinstalled Eclipse, or changed the location of the projects), almost all of my overridden methods are not formatted correctly, causing the error: ...
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Adding Python Path on Windows 7

...to add the Python path to the command line on Windows 7, yet no matter the method I try, nothing seems to work. I've used the set command, I've tried adding it through the Edit Environment variables prompt etc. ...
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psql invalid command \N while restore sql

... But all psql commands starts by backslash "\" symbol. So you can get this messages, when probably copy statement fails, but a loading of dump continues. This message is only false alarm. You have to search a lines before for reason why COPY statement fails. Is possible to switch psql to "stop on f...
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How to dynamically create generic C# object using reflection? [duplicate]

... Check out this article and this simple example. Quick translation of same to your classes ... var d1 = typeof(Task<>); Type[] typeArgs = { typeof(Item) }; var makeme = d1.MakeGenericType(typeArgs); object o = Activator.CreateInstance(makeme); Per your edit: For that case, you can do th...
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MySQL Cannot Add Foreign Key Constraint

...m trying to add Foreign Key constraints to my database as a project requirement and it worked the first time or two on different tables, but I have two tables on which I get an error when trying to add the Foreign Key Constraints. The error message that I get is: ...
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Python Git Module experiences? [closed]

...dules for Python? (I know of GitPython, PyGit, and Dulwich - feel free to mention others if you know of them.) 11 Answers ...
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execJs: 'Could not find a JavaScript runtime' but execjs AND therubyracer are in Gemfile

... Ubuntu Users: I had the same problem and I fixed it by installing nodejson my system independent of the gem. on ubuntu its: sudo apt-get install nodejs I'm using 64bit ubuntu 11.10 update: From @Galina 's answer below I'm guessing that the latest ...
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Javascript: How to detect if browser window is scrolled to bottom?

...l = function(ev) { if ((window.innerHeight + window.scrollY) >= document.body.offsetHeight) { // you're at the bottom of the page } }; See demo share | improve this answer ...