Sample of bashscript receiving and requiring command line argument

bash-script-named-arguments.sh

#!/bin/bash

# Variables to store argument values
ARG1=""
ARG2=""

# Function to display the error message and exit the script
function usage_error {
    echo "Usage: $0 --argument_1=\"<text>\" --argument_2=\"<text>\""
    echo "Error: $1"
    exit 1
}

# Process the arguments
while [[ $# -gt 0 ]]; do
    case "$1" in
        --argument_1=*)
            ARG1="${1#*=}"
            shift
            ;;
        --argument_2=*)
            ARG2="${1#*=}"
            shift
            ;;
        *)
            usage_error "Unknown argument: $1"
            ;;
    esac
done

# Check if required arguments were provided
if [[ -z "$ARG1" ]]; then
    usage_error "--argument_1 is required"
fi

if [[ -z "$ARG2" ]]; then
    usage_error "--argument_2 is required"
fi

# Output the received arguments
echo "argument_1: $ARG1"
echo "argument_2: $ARG2"