_LS_OPTS='-bCF --color=auto'
ls --group-directories-first >/dev/null 2>&1 \
&& _LS_OPTS="$_LS_OPTS --group-directories-first"
_LS_OPTS='-bCF --color=auto'
ls --group-directories-first >/dev/null 2>&1 \
&& _LS_OPTS="$_LS_OPTS --group-directories-first"