shellscript

Create a shell script that automates system monitoring and log processing.

Requirements:

Create a shell script named system_monitor.sh that:

Collects and displays current CPU usage, memory usage, and disk space Identifies the top 5 processes consuming the most CPU and memory Searches for ERROR and WARNING messages in a specified log file Archives logs older than 7 days into a compressed format Accepts command-line arguments to customize behavior (e.g., log file path, archive directory)

The script should:

Include proper error handling Be well-documented with comments Work on a standard Linux/Unix environment Output results in a structured, readable format

Perl

Create a Perl script for text processing and data extraction.

Requirements:

Create a Perl script named log_analyzer.pl that:

Parses a complex log file with mixed format entries Extracts relevant information using regular expressions Generates a summary report of events, errors, and statistics Identifies patterns or anomalies in the log data Converts the extracted data to a structured format (JSON or XML)

The script should:

Use efficient Perl idioms and best practices Include proper error handling Be configurable through command-line arguments Process large files efficiently

Java

Objective: Implement a multi-threaded data processing application. Requirements:

Create a Java application that:

Reads data from a CSV file containing sample time-series data Processes the data using multiple threads to calculate statistics (min, max, average, standard deviation) Implements a producer-consumer pattern for efficient data processing Writes the results to an output file Provides progress updates during processing

Your solution should:

Use proper Java concurrency mechanisms (ExecutorService, Future, etc.) Handle exceptions appropriately Be well-organized with appropriate class structure Include JUnit tests for core functionality

File structure:

Main class: DataProcessor.java Other classes as needed Test classes for unit testing