Use the following command line options:
cp Encoding --- sets an encoding to open as.
cps Encoding --- sets an encoding to save as.
sa "DestFile" --- specifies a file name to save as after the encoding conversion
ss+ --- saves the file with a Unicode signature (BOM) after the encoding conversion.
ss- --- saves the file without a Unicode signature (BOM) after the encoding conversion.
For instance, if you want to convert a file from Western European (iso-8859-1) to UTF-8, use the following syntax:
"windows1252.txt" cp 1252 cps 65001 ss- sa "utf8.txt"
See Encoding Constants for the list of encodings.
See Using Command Line Options for more information.