Linux文件单个重命名一般用mv命令，集体重命名很多人自己写一个简单脚本，但是其实Linux的rename命令可以简单实现绝大多数的重命名任务。
man rename结果如下：
NAME
rename - Rename files
SYNOPSIS
rename from to file...
DESCRIPTION
rename will rename the specified files by replacing the first occurrence of from in their name by to.
For example, given the files foo1, ..., foo9, foo10, ..., foo278, the commands
rename foo foo0 foo?
rename foo foo0 foo??
will turn them into foo001, ..., foo009, foo010, ..., foo278.
And
rename .htm .html *.htm
will fix the extension of your html files.
比如我有三个文件：
hs_ok_all_200911.txt
hs_ok_all_a.txt
hs_ok_all_b.txt
我需要将所有的hs_ok_all改为hs
则使用
rename hs_ok_all hs hs_ok_all_*
即可。
所以rename的第一个参数是要改的部分， 第二个参数是改后的结果，第三个参数是需要改的文件（含通配符）。