Scripting

Check Python Version: A Simple Illustrated Guide

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The Best Way to Check Python Version (3 Easy Steps): To check your Python version, run python ‐V in your command line (Windows), shell (Mac), or terminal (Linux/Ubuntu). To check your Python version in your script, run import sys to get the module and use sys.version to find detailed version information in your code. In … Read more

The Basics of Text File Editing Commands in PowerShell

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💡 Problem Formulation: When working with text files in a Windows environment, it’s often necessary to perform tasks like creating, reading, appending, and deleting text content programmatically. For example, you might want to create a script that logs events to a text file, or modify configuration files for software deployment. PowerShell, the robust command-line shell … Read more

5 Ways to Edit Remote Text Files with PowerShell

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💡 Problem Formulation: You’re managing multiple servers or systems, possibly in a mixed environment (e.g., some hosts on-premises, others in the cloud), and need to update configuration or text files remotely. The challenge is to do this efficiently and reliably using PowerShell, with a prime example being the need to change a specific line in … Read more

5 Best PowerShell Methods for Reading and Replacing Text in Files

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💡 Problem Formulation: Many day-to-day tasks in software development and systems administration involve reading and modifying text within files. Let’s say we have a configuration file where an application’s endpoint URL is written as http://example.com. Now, we need to replace it with https://secure.example.com across multiple files. Efficiently automating this process with a PowerShell script can … Read more

How Do You Add Text to a File in Windows PowerShell?

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To add text to a file using PowerShell, you can use the Add-Content cmdlet, which appends content to a specified item or file. Content can be specified using the Value parameter. Example: Add-Content -Path “C:\path\to\your\file.txt” -Value “Text to add” Here’s a basic example of how to use Add-Content: This command will append “Text to add” … Read more

5 Easy Ways to Save Terminal Output to File (Linux)

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✅ Problem Formulation: What are the various ways to save terminal output in Linux? For example, you might need to capture output for later review, document command results for reporting, or track error messages for debugging. Method 1: Redirection Operator Use the > operator to redirect output to a file. For example, ls > file.txt … Read more

Python Argparse Module – Command Line Arguments Made Easy

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The argparse module in Python is designed for writing user-friendly command-line interfaces. It allows the programmer to define the expected arguments, helping the program to automatically generate help and usage messages and to issue errors when users give the program invalid arguments. For example, a programmer might use argparse to create a script for resizing … Read more

Python hasattr() – Easy Examples and Use Cases

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Python’s built-in hasattr(object, string) function takes an object and a string as an input. It returns True if one of the object‘s attributes has the name given by the string. Otherwise, it returns False. Syntax hasattr() The hasattr() object has the following syntax: Syntax: hasattr(object, attribute) # Does the object have this attribute? Arguments object … Read more

How to Print Exception Messages in Python (Try-Except)

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Python comes with extensive support for exceptions and exception handling. An exception event interrupts and, if uncaught, immediately terminates a running program. The most popular examples are the IndexError, ValueError, and TypeError. An exception will immediately terminate your program. To avoid this, you can catch the exception with a try/except block around the code where … Read more