fpid3 dit :
usage: id3 [options] filename
FPID3 Process ID3

Main options:
-L show license
-h show help
--help show help
--version show version
--list-genres list predefined id3v1 genres showing values and string
--list-frames [options] list id3v2 frames providing id, description and help
--display enable the intern command line program
--clear clear all tags
--delete delete all tags
--tag-version show the most recent tag version presents in the file

ID3v1 options:
--clear-v1 clear the id3v1 tag
--delete-v1 delete the id3v1 tag
--get-v1 show all id3v1 data
--get-album show the album name
--get-artist show the artist name
--get-comment show the comment
--get-genre show the genre
--get-title show the title
--get-track show the track number
--get-year show the year
--set-album <string> set the album name
--set-artist <string> set the artist name
--set-comment <string> set the comment
--set-genre <int> set the genre
--set-title <string> set the title
--set-track <int> set the track number
--set-year <int> set the year

ID3v2 options:
--clear-v2 clear the id3v2 tag
--delete-v2 delete the id3v2 tag
--get-v2 show all id3v2 data
--get-T000 show all text information frames
--set-T000 <id> <text> set a text information frame
--del-T000 <id> [<id>...]delete the text information frame(s)
--get-TXXX show all user defined text information frames
--set-TXXX <desc> <text> set a defined text information frame
--del-TXXX <desc> del a defined text information frame
--get-W000 show all url link frames
--set-W000 <id> <url> set a url link frame
--del-W000 <id> delete a url link frame
--get-WXXX show all user defined url link frames
--set-WXXX <desc> <url> set a user defined url link frame
--del-WXXX <desc> delete a user defined url link frame
--get-USLT show all unsynchronised lyrics frames
--set-USLT <path> set an unsynchronised lyrics frame from a file
--del-USLT <lng> <desc> delete an unsynchronised lyrics frame
--get-SYLT show all synchronised lyrics frames
--set-SYLT <path> set a synchronised lyrics frame from a file
--del-SYLT <lng> <desc> delete a synchronised lyrics frame
--get-COMM show all comment frames
--set-COMM <path> set a comment frame from a file
--del-COMM <lng> <desc> delete a comment frame
--get-PCNT show the play count
--set-PCNT <count> set the play count
--inc-PCNT increment the play count
--dec-PCNT decrement the play count
--del-PCNT delete the play count
--get-POPM show all popularimeter frame
--set-POPM <email> <count> <rating> set a popularimeter frames
--del-POPM <email> delete a popularimeter frame
--get-APIC export all attached pictures
--set-APIC <desc> <path> set an attached picture

Advanced options:
--dump dump id3v1 and id3v2 tags of a file
--dump-v1 dump the id3v1 tag of a file
--dump-v2 dump the id3v2 tag of a file
--intellidump enable colors when dumping
--disable-padding disable the id3v2 padding
--raise-events show events
--ro write on unlimited lines (more than 80 chars)
--raw-mode disable all colors and presentations
--list-frames options:
--sp allow simple pattern like T* or *A*
pattern a regular expression
--encoding [options] change encoding of specified frames
--encoding options:
<frame id>
<value> encodings values : ISO-8859-1, Unicode, UTF8

Some options are currently unvailaible...