sed "s/[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}/$APACHE_IP/g" $SETTINGS_FOLDER/$vhost 1> $SETTINGS_FOLDER/$vhost


$ bash -x ...
+ sed 's/[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}/1.1.1.1:80/g' current/some/path/vhost.conf