test.sh文件：
#!/bin/bash for file in `ls`;do echo $file done
输出
bogon:test macname$ chmod +x test.sh bogon:test macname$ ./test.sh case html report run.sh test.sh
参考：
https://www.runoob.com/linux/linux-shell-variable.html
原文：https://www.cnblogs.com/sea-stream/p/11387675.html