# $FreeBSD$ IFS=, SPECIAL="break,\ :,\ continue,\ . /dev/null,\ eval,\ exec,\ export -p,\ readonly -p,\ set,\ shift,\ times,\ trap,\ unset foo" # If there is no command word, the shell must abort on an assignment error. ${SH} -c "readonly a=0; a=2; exit 0" 2>/dev/null && exit 1 # Special built-in utilities must abort on an assignment error. set -- ${SPECIAL} for cmd in "$@" do ${SH} -c "readonly a=0; a=2 ${cmd}; exit 0" 2>/dev/null && exit 1 done # Other utilities must not abort; we currently still execute them. ${SH} -c 'readonly a=0; a=1 true; exit $a' 2>/dev/null || exit 1 ${SH} -c 'readonly a=0; a=1 command :; exit $a' 2>/dev/null || exit 1