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7 min readTo run the sleep command in a Vagrantfile, you can simply add the command within the provision block of the Vagrant configuration. The sleep command can be used to pause the execution of scripts or commands for a specified amount of time. For example, to make the Vagrant machine sleep for 60 seconds, you can add the following line within the provision block:config.vm.
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6 min readIn Elixir, you can truncate a string using the String.slice/2 function. This function takes two arguments: the string to be truncated and the maximum length of the truncated string. Here's an example of how to use it: string = "This is a long string that needs to be truncated" truncated_string = String.slice(string, 0..10) IO.puts truncated_string In this example, the String.slice/2 function is used to truncate the original string to 10 characters.
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4 min readIn Groovy, global variables can be accessed simply by referring to them by their name throughout the code. Global variables are defined outside of any functions or blocks in the script and can be accessed from any part of the script. To access global variables, simply use the variable name directly in the code without any additional qualifications or prefixes. This allows for easy and convenient access to shared data throughout the Groovy script.
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3 min readWhen running the command "vagrant destroy," any tasks that need to be executed before destroying the virtual machine can be added by using the "v.destroy" provisioner within the Vagrantfile. This provisioner allows you to define tasks that will be run before destroying the virtual machine. This can be useful for tasks such as cleaning up files or database entries before the machine is destroyed. By adding the v.
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6 min readTo get data from an XML file using Groovy, you can use the XmlSlurper class provided in Groovy. XmlSlurper allows you to parse and navigate through XML documents easily.You can create an instance of XmlSlurper by passing the XML file as an argument to its constructor. Once you have the XmlSlurper object, you can use its methods like children(), depthFirst(), find(), etc., to navigate through the XML document and retrieve the desired data.
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4 min readTo gracefully restart an Elixir app, you can use the System module to send a signal to the running application, forcing it to shut down and restart. This can be done by calling System.restart/0 or System.halt/1 function. Additionally, you can implement a callback in your supervision tree to handle the graceful shutdown of processes before restarting the app. This ensures that all processes are properly cleaned up before the restart, preventing any potential issues.
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5 min readTo forward a port on a running Vagrant box, you need to modify the Vagrantfile configuration file for the specific box you are working with. Inside the Vagrantfile, you can add a line of code that specifies the port forwarding configuration. This line typically looks like config.vm.network "forwarded_port", guest: 80, host: 8080, auto_correct: true. In this example, we are forwarding port 80 from the guest machine to port 8080 on the host machine.
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5 min readYou can make Jenkins wait between parallel job executions in Groovy by using the waitForCondition method. This method can be used to wait for a condition to be met before proceeding with the next job. In your Groovy script, you can use this method to wait for a specific condition to be true before starting the next parallel job. This can help in coordinating the execution of parallel jobs and prevent them from running simultaneously.
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4 min readIn Elixir, you can write your own stream functions by defining modules that implement the Enumerable protocol. By doing so, you can create custom streams that generate or manipulate data as needed. To create a stream, use the Stream module and the Enum module in Elixir. You can define a custom stream function by implementing the Stream.run/2 function, which takes an initial value and a function that generates the next value in the stream.
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7 min readTo sync a folder with Vagrant in Windows, you can use the "config.vm.synced_folder" command in your Vagrantfile. This command allows you to specify a folder on your host machine that will be synced with a folder on your Vagrant virtual machine.To do this, open your Vagrantfile in a text editor and add the following line of code:config.vm.
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4 min readTo get a particular element from each index using Groovy, you can use the following syntax:arrayName[index]This will allow you to access the element at the specified index within the array. Make sure to replace "arrayName" with the actual name of your array, and "index" with the specific index number you want to retrieve the element from.[rating:adc0f8fb-01e6-4bd0-9ee9-5e05023d912a]How to get the distinct elements from each index using Groovy.