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6 min readTo call a Groovy script from a Jenkins file, you can follow these steps:First, make sure you have the necessary plugins installed on your Jenkins server to support Groovy scripting. In your Jenkins pipeline or job, create a new stage or step where you want to call the Groovy script. Inside that stage or step, use the sh step to execute a shell command. Groovy scripts can be executed within a shell environment. stage('Call Groovy Script') { steps { sh ''' groovy myscript.
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8 min readMoving Average Convergence Divergence (MACD) is a popular technical analysis tool used to identify potential buy and sell signals in financial markets. It consists of two main components - the MACD line (also known as the MACD indicator) and the signal line.The MACD line is calculated by subtracting the 26-period exponential moving average (EMA) from the 12-period EMA. The result is a line that oscillates above and below the zero line.
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4 min readTo extract version information using regular expressions (regex) in Groovy, you can follow these steps:Import the necessary packages: import java.util.regex.Matcher import java.util.regex.Pattern Define the input string that contains the version information you want to extract: def input = "Version: 1.2.3" Define the regex pattern to match the version information: def pattern = Pattern.compile("\\d+(\\.\\d+)+") Explanation of the regex pattern:\\d+ matches one or more digits(\\.
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6 min readThe Ichimoku Cloud, also known as Ichimoku Kinko Hyo, is a popular technical analysis tool used in trading. It consists of five different lines or components that create a cloud-like structure. These components are calculated using various mathematical formulas.Tenkan-Sen (Conversion Line): The Tenkan-Sen is calculated by averaging the highest high and the lowest low over a specific period (typically 9 periods). It provides a moving average line that helps identify short-term trends.
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7 min readTo check if a URL exists or returns a 404 status code using Groovy script, you can use the HttpURLConnection class provided by the java.net package. Here's an example: import java.net.HttpURLConnection import java.net.URL String urlToCheck = "https://www.example.com" try { URL url = new URL(urlToCheck) HttpURLConnection connection = url.openConnection() as HttpURLConnection connection.requestMethod = "HEAD" connection.
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4 min readTo add the !DOCTYPE declaration in HTML using Groovy, you can simply include it as a string at the beginning of your HTML document. Here's an example: def htmlString = ''' <!DOCTYPE html> <html> <head> <title>My HTML Page</title> </head> <body> <h1>Hello, World!</h1> </body> </html> ''' // Further code handling the HTML string...
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10 min readThe Chandelier Exit is a popular trailing stop strategy used by traders and investors to protect their profits and limit potential losses in the financial markets. It is particularly suitable for beginners who are learning to manage risk and want a straightforward approach to exit their trades.The strategy gets its name from the way it trails the price action like a chandelier hanging overhead. It dynamically adjusts the stop-loss level based on the price fluctuations in the market.
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7 min readTo get common objects from an array in Groovy, you can follow these steps:Declare and initialize an array with the desired objects: def array1 = [1, 2, 3, 4, 5] def array2 = [4, 5, 6, 7, 8] Use the intersect() method to find the common objects between the arrays: def commonObjects = array1.intersect(array2) The commonObjects variable will now hold the common objects between the two arrays.
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8 min readThe Chandelier Exit is a technical analysis tool used in stock trading and other financial markets to help determine stop-loss levels. It was developed by Chuck LeBeau and is named after the concept of hanging chandeliers from a ceiling.The Chandelier Exit is calculated by taking into account the highest high price reached since entering a trade or starting to analyze a market.
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4 min readIn Groovy, you can compare strings using various operators and methods. Here are several ways to compare strings in a Groovy script:Using the equality operator (==): You can use the equality operator to check if two strings are equal. This operator returns a boolean value (true or false). For example: def str1 = "Hello" def str2 = "World" println(str1 == str2) // Prints 'false' Using the inequality operator (.
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6 min readTo get Jenkins node configurations from Groovy, you can use the following steps:Open your Jenkins dashboard and navigate to "Manage Jenkins" from the left-hand side menu. Click on "Script Console" to open the script console. In the script console, you can write and execute Groovy scripts to interact with Jenkins. To get the list of all Jenkins nodes and their configurations, use the following code snippet: import jenkins.model.Jenkins def jenkins = Jenkins.