rename(1) - Linux man page

Name

rename - Rename files

rename from to file...
rename -V

rename will rename the specified files by replacing the first occurrence of from in their name by to.

-V, --version

Display version information and exit.

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.

The rename command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.

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