#!/usr/bin/env bash echo echo "This is a test script!" echo "Current PID: $$" echo "Current shell: $SHELL" echo "Current user: $(whoami)" echo "Current date: $(date)" echo "Hello, $USER!" echo "Home directory: $HOME" echo "Current directory: $(pwd)" echo "Script name: $0" echo "Number of parameters: $#" echo "Parameters: $*" echo