#!/bin/shd=examples/calc(echo ''          | bin/idelvm $d/calc &&echo '0'         | bin/idelvm $d/calc &&echo '42'        | bin/idelvm $d/calc &&echo '-42'       | bin/idelvm $d/calc &&echo '--42'      | bin/idelvm $d/calc &&echo ' 2+3'      | bin/idelvm $d/calc &&echo ' 5+4*-3+1' | bin/idelvm $d/calc ) >tmp-outputecho '0042-42425-6' |diff tmp-output -