用rename命令
rename 原名 替换名 要改的文件
例子：
$ ls
CB-0_PC13.txt CB-13_PC13.txt CB-17_PC13.txt CB-20_PC13.txt CB-2_PC13.txt CB-6_PC13.txt PC_16_3_29rankgenes.txt
CB-10_PC13.txt CB-14_PC13.txt CB-18_PC13.txt CB-21_PC13.txt CB-3_PC13.txt CB-7_PC13.txt
CB-11_PC13.txt CB-15_PC13.txt CB-19_PC13.txt CB-22_PC13.txt CB-4_PC13.txt CB-8_PC13.txt
CB-12_PC13.txt CB-16_PC13.txt CB-1_PC13.txt CB-23_PC13.txt CB-5_PC13.txt CB-9_PC13.txt
将CB都改为BM：
$ rename CB BM *
$ ls
BM-0_PC13.txt BM-13_PC13.txt BM-17_PC13.txt BM-20_PC13.txt BM-2_PC13.txt BM-6_PC13.txt PC_16_3_29rankgenes.txt
BM-10_PC13.txt BM-14_PC13.txt BM-18_PC13.txt BM-21_PC13.txt BM-3_PC13.txt BM-7_PC13.txt
BM-11_PC13.txt BM-15_PC13.txt BM-19_PC13.txt BM-22_PC13.txt BM-4_PC13.txt BM-8_PC13.txt
BM-12_PC13.txt BM-16_PC13.txt BM-1_PC13.txt BM-23_PC13.txt BM-5_PC13.txt BM-9_PC13.txt
