什么是以正确的方式将下列内容作为布尔表达式执行的?Shell脚本中的布尔表达式
for i in `ls $1/resources`; do
if [ $i != "database.db" ]
then
if [ $i != "tiles" ]
then
if [ $i != "map.pdf" ]
then
if [ $i != "map.png" ]
then
svn export -q $1/resources/$i ../MyProject/Resources/$i
...