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Run a string as a command within a Bash script

...rameters so I ended up with something like: my_exe () { mysql -sN -e "select $1 from heat.stack where heat.stack.name=\"$2\";" } This is something I use to monitor openstack heat stack creation. In this case I expect two conditions, an action 'CREATE' and a status 'COMPLETE' on a stack named ...
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Environment variable substitution in sed

... The selected answer describes a workaround ... don't use slash for the delimiter – Eddie Feb 18 '14 at 22:16 ...
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IntelliJ Organize Imports

...ditor -> Auto Import -> Java (left panel) and make the below things: Select check box for "Add unambigious imports on the fly" and "Optimize imports on the fly" Refer this. share | improve...
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How to clear the cache in NetBeans

...ee also http://wiki.netbeans.org/FaqWhatIsUserdir. Help Menu On Windows, selecting the Help » About menu will display a dialog that contains the following text: Product Version: NetBeans IDE 8.0.2 (Build 201411181905) Java: 1.7.0_80; Java HotSpot(TM) 64-Bit Server VM 24.80-b11 Runtime: Java(TM) ...
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Ruby on Rails: how do I sort with two columns using ActiveRecord?

...ersonally I find it easier to manage. SQL gets produced in one step only: SELECT "models".* FROM "models" ORDER BY "models"."etc" ASC, "models"."bar" DESC, "models"."foo" ASC Thusly, for the original question: Model.order(:updated_at).order(:price) You need not declare data type, ActiveRecord ...
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scipy.misc module has no attribute imread?

... the Pillow library by following commands: pip install pillow Note, the selected answer has been outdated. See the docs of SciPy Note that Pillow (https://python-pillow.org/) is not a dependency of SciPy, but the image manipulation functions indicated in the list below are not available wit...
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XAMPP - MySQL shutdown unexpectedly

...Windows has built-in folder versioning — right click on /mysql/data/ and select Restore previous versions. You can then delete the current contents of the folder and replace it with the older version's contents. Addendum: To ensure that you don't forget to run XAMPP as an administrator you can ri...
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machine learning libraries in C# [closed]

...iningSet trainingSet) { var attributes = trainingSet._attributes.Select(x => new Attribute(x)).ToArray(); var featureVector = new FastVector(trainingSet.AttributesCount); foreach (var attribute in attributes) { featureVector.addElement(attribute); } ...
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How to add anything in through jquery/javascript?

... You can select it and add to it as normal: $('head').append('<link />'); share | improve this answer | ...
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Color Tint UIButton Image

...nt color of your button and override the image with following . In assets select the button background you want to set tint color. In the attribute inspector of the image set the value render as to "Template Image" Now whenever you setbutton.tintColor = UIColor.red you button will be shown in r...