Which of the following commands can be used to convert text files in one character encoding to another character encoding?

`cat` is used to concatenate and display file contents, not convert character encodings.

`convert` is typically part of ImageMagick and is used for image format conversions, not text encoding.

`dd` is used for converting and copying files at a low level (e.g., block by block), but it's not designed for character encoding conversions.

The `iconv` command is a standard utility on Unix-like systems specifically designed to convert the character encoding of a file from one encoding scheme to another, such as converting a UTF-8 file to ISO-8859-1. It takes input and output encodings as arguments to perform the conversion.

`utf2utf` is not a standard Linux command for character encoding conversion.