請問我想更改多個檔名如下,我 rename 指令該如何使用?
From To
a_y.txt a.txt
a1_y.txt a1.txt
a2_y.txt a2.txt
a3_y.txt a3.txt
a4_y.txt a4.txt
a5_y.txt a5.txt
a6_y.txt a6.txt

謝謝

---