#!/bin/sh
################################################################################
# An example of using named parameters in a Bash script. However, arguments' #
# keys and values must be joined by an equals sign (=). #
#------------------------------------------------------------------------------#
# Usage: #
# ./named-arguments.sh -a1=hello --arg_2="hello world" -a3=foo bar #
# #
# Result: #
# -a1 or --arg_1 is: hello #
# -a2 or --arg_2 is: hello world #
# -a3 or --arg_3 is: foo #
################################################################################
while [ $# -gt 0 ]; do case "$1" in
-a1*|--arg_1*) arg_1="${1#*=}" ;;
-a2*|--arg_2*) arg_2="${1#*=}" ;;
-a3*|--arg_3*) arg_3="${1#*=}" ;;
esac; shift; done
echo "-a1 or --arg_1 is: ${arg_1}"
echo "-a2 or --arg_2 is: ${arg_2}"
echo "-a3 or --arg_3 is: ${arg_3}"