#!/bin/sh

args()
{
	local i=0
	while [ -n "$1" ]; do
		i=$((${i} + 1))
		echo "ARG ${i}: $1"
		shift
	done
}

var="--exec-on-eostudy '/usr/bin/dcm_write_dir #p #f #a #c'"

args one two three
args one 'two three'
args ${var}
args "${var}"
eval args "${var}"