Detect and convert the encoding of text files. More information: https://github.com/nijel/enca.
enca {{file1 file2 ...}}
enca -L {{language}} {{file1 file2 ...}}
enca -L {{language}} -x {{to_encoding}} {{file1 file2 ...}}
enca -L {{language}} -x {{to_encoding}} < {{original_file}} > {{new_file}}