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Relative paths based on file location instead of current working directory [duplicate]

... What you want to do is get the absolute path of the script (available via ${BASH_SOURCE[0]}) and then use this to get the parent directory and cd to it at the beginning of the script. #!/bin/bash parent_path=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P ) cd "$parent_path"...
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TypeScript and field initializers

... a class and 2. @JackWester is right, bob is not an instanceof Person. Try alert(bob instanceof Person); In this code example Person is there for Type Assertion purposes only. – Jacques Oct 13 '15 at 10:42 ...
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How do I pass parameters into a PHP script through a webpage?

I am calling a PHP script whenever a webpage loads. However, there is a parameter that the PHP script needs to run (which I normally pass through the command line when I am testing the script). ...
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How to list variables declared in script in bash?

In my script in bash, there are lot of variables, and I have to make something to save them to file. My question is how to list all variables declared in my script and get list like this: ...
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What do the python file extensions, .pyc .pyd .pyo stand for?

...c’ or ‘.pyo’ files is the speed with which they are loaded. When a script is run by giving its name on the command line, the bytecode for the script is never written to a ‘.pyc’ or ‘.pyo’ file. Thus, the startup time of a script may be reduced by moving most of its code to a module a...
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Mechanisms for tracking DB schema changes [closed]

... In the Rails world, there's the concept of migrations, scripts in which changes to the database are made in Ruby rather than a database-specific flavour of SQL. Your Ruby migration code ends up being converted into the DDL specific to your current database; this makes switching d...
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How to run a shell script at startup

On an Amazon S3 Linux instance, I have two scripts called start_my_app and stop_my_app which start and stop forever (which in turn runs my Node.js application). I use these scripts to manually start and stop my Node.js application. So far so good. ...
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AngularJS Multiple ng-app within a page

...; angular.bootstrap(document.getElementById("App2"), ['namesList']); <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.3/angular.min.js"></script> <div id="App1" ng-app="shoppingCart" ng-controller="ShoppingCartController"> <h1>Your order</h1> ...
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String comparison in bash. [[: not found

... in bash. I already found an answer on how to do it on stackoverflow . In script I am trying, I am using the code submitted by Adam in the mentioned question: ...
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scopes with lambda and arguments in Rails 4 style?

...where(id: id) } But when I was reviewing my code using Codacy I found it alerting me about this syntax Use the `lambda` method for multiline lambdas. I changed it to be and it working well scope :find_lazy, lambda {|id| where(id: id) } ...