rename

rename can refer to multiple commands with the same name
View documentation for the Perl version

$ tldr -p common rename

$ tldr rename.util

rename [options] expression replacement files...

rename is a command for batch renaming files. Two major implementations exist:
The Perl rename (also called prename or rename.ul) uses Perl regular expressions for powerful pattern matching. It is common on Debian-based systems.
The util-linux rename uses simple string substitution. It replaces the first occurrence of a string in each filename. Common on Red Hat-based systems.
Check which version is installed with rename --version or file $(which rename).

mv(1), mmv(1)