-f

Specifies the encoding you are converting from. Unlike iconv, this option can be omitted. In such cases,the current locale is used.

-t

Specifies the encoding you are converting to. Unlike iconv, this option can be omitted. In such cases,the current locale is used.Therefore, when both -f and -t are omitted, piconv just acts like cat.

-s

uses string instead of file for the source of text.

-l

Lists all available encodings, one per line, in case-insensitive order. Note that only the canonicalnames are listed; many aliases exist. For example, the names are case-insensitive, and many standard andcommon aliases work, such as "latin1" for "ISO-8859-1", or "ibm850" instead of "cp850", or "winlatin1" for"cp1252". See Encode::Supported for a full discussion.

-r

Resolve encoding_alias to Encode canonical encoding name.

-C

Check the validity of the stream if N = 1. When N = -1, something interesting happens when it encountersan invalid character.

-p

Transliterate characters missing in encoding to \x{HHHH} where HHHH is the hexadecimal Unicode code point.

--htmlcref

Transliterate characters missing in encoding to &#NNN; where NNN is the decimal Unicode code point.

--xmlcref

Transliterate characters missing in encoding to &#xHHHH; where HHHH is the hexadecimal Unicode code point.

-D

Invokes debugging mode. Primarily for Encode hackers.

-S

Selects which scheme is to be used for conversion. Available schemes are as follows:from_toUses Encode::from_to for conversion. This is the default.decode_encodeInput strings are decode()d then encode()d. A straight two-step implementation.perlioThe new perlIO layer is used. NI-S' favorite.You should use this option if you are using UTF-16 and others which linefeed is not $/.Like the -D option, this is also for Encode hackers.