[JDC-1 /home/root]# touch v6.sh
[JDC-1 /home/root]# vi v6.sh
[JDC-1 /home/root]# chmod u+x v6.sh
[JDC-1 /home/root]# ls -l v6.sh
-rwxrw-rw-    1 root     root           188 Dec 11 14:05 v6.sh

上面的v6.sh已经变为绿色。