从文件名创建目录并移动bash

I have a load of files

我有一大堆文件

BR0200.aaa.tsv
BR0200.bbb.tsv
BR0200.ccc.tsv
BR0210.aaa.tsv
BR0210.bbb.tsv
BR0210.ccc.tsv
W0210.aaa.tsv
W0210.aaa.tsv
W0210.aaa.tsv
BR0200.aaa.