#!/bin/bash
seqw=
if [ "$1" = "-w" ]; then
	seqw=-w ; shift
fi
var=$1
i0=$2
i1=$3
shift 3
for count in $(seq $seqw $i0 $i1); do
	argc=0
	argv=()
	for arg; do
		argv[$argc]=${arg//$var/$count}
		argc=$(($argc+1))
	done
	"${argv[@]}"
done