Scala - Command Line Arguments
Scala’s main method receives command line arguments as an Array[String] through the args parameter. This is the most basic approach for simple scripts.
Command
Linux xargs: Building Command Lines from Input
Many Unix commands produce lists of items—filenames, URLs, identifiers—but other commands can’t consume those lists from standard input. This is where xargs becomes indispensable. It reads items…
Command Injection: OS Command Sanitization
Command injection occurs when an attacker can execute arbitrary operating system commands on your server through a vulnerable application. It’s not a subtle vulnerability—it’s a complete system…
Read more →Command Pattern in Go: Action Queuing
The Command pattern encapsulates a request as an object, letting you parameterize clients with different requests, queue operations, and support undoable actions. It’s one of the Gang of Four…
Read more →Command Pattern in Python: Undo/Redo Implementation
The Command pattern is a behavioral design pattern that turns requests into standalone objects. Instead of calling methods directly on receivers, you wrap the operation, its parameters, and the…
Read more →Command Pattern: Encapsulated Operations
The Command pattern encapsulates a request as an object, letting you parameterize clients with different requests, queue operations, log changes, and support undoable actions. It’s one of the most…
Read more →Apache Spark - spark-submit Command Guide
spark-submit is the command-line tool that ships with Apache Spark for deploying applications to a cluster. Whether you’re running a batch ETL job, a streaming pipeline, or a machine learning…
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