Identify Similar String Patterns you own this product

prerequisites
intermediate PowerShell (use variables, common PowerShell built-in cmdlets, conditional and loop statements)
skills learned
read text files • use complex regex patterns including lookaround, regex quantifiers, and ranges • use the switch statement and its regex parameter to extract substrings from text files • arrays and array indexing using expressions • edit text using replace operations • write to text files
Fernando Corrales
1 week · 4-6 hours per week · INTERMEDIATE

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Look inside

XYZ Services Company, the consulting and outsourcing firm you work for, recently experienced a massive failure in its IT Infrastructure. While it’s working on getting the environment back up and running, the company urgently needs to identify potential vulnerabilities in the digital signatures used by the employees for two-factor authentication. Applying PowerShell scripting best practices, you’ll write a script that uses the switch statement and its regex parameter to extract a list of digital signatures from an input file, identify matching strings that satisfy specific conditions, classify them as required, and send them to log files. When you’re done, the information security officer will thank you for helping prevent future security issues.

This project is designed for learning purposes and is not a complete, production-ready application or solution.

project author

Fernando Corrales
Fernando Corrales is a cloud engineer with several years of IT experience in multinational companies. He’s worked extensively with VMware products, focusing on private cloud automation with PowerCLI and PowerShell, in addition to delivering PowerShell training for some of his recent employers. Fernando holds several technical degrees from the Tecnológico de Costa Rica and has a personal blog: fercorrales.com.

prerequisites

This liveProject is for technology administrators and intermediate-level PowerShell users who want to learn or expand their text and string parsing skills. To begin these liveProjects you’ll need to be familiar with the following:

TOOLS
  • Intermediate PowerShell 7
  • Visual Studio Code with PowerShell extension

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