for i in $(ls);do
if [ $i = '*.java' ];then
echo "I do something with the file $i"
fi
done
不需要花哨的技巧：
for i in *.java; do
...
done
for i in $(ls);do
if [ $i = '*.java' ];then
echo "I do something with the file $i"
fi
done
for i in *.java; do
...
done
