/usr/bin/btshowmetainfo.bittorrent is in bittorrent 3.4.2-11.5ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | #! /usr/bin/python
# Written by Henry 'Pi' James and Loring Holden
# see LICENSE.txt for license information
from sys import *
from os.path import *
from sha import *
from BitTorrent.bencode import *
NAME, EXT = splitext(basename(argv[0]))
VERSION = '20021207'
print '%s %s - decode BitTorrent metainfo files' % (NAME, VERSION)
print
if len(argv) == 1:
    print '%s file1.torrent file2.torrent file3.torrent ...' % argv[0]
    print
    exit(2) # common exit code for syntax error
for metainfo_name in argv[1:]:
    metainfo_file = open(metainfo_name, 'rb')
    if metainfo_file.read(11) != 'd8:announce':
        print '%s: Not a BitTorrent metainfo file' % metainfo_name
        continue
    metainfo_file.seek(0)
    metainfo = bdecode(metainfo_file.read())
    metainfo_file.close()
    announce = metainfo['announce']
    info = metainfo['info']
    info_hash = sha(bencode(info))
    print 'metainfo file.: %s' % basename(metainfo_name)
    print 'info hash.....: %s' % info_hash.hexdigest()
    piece_length = info['piece length']
    if info.has_key('length'):
        # let's assume we just have a file
        print 'file name.....: %s' % info['name']
        file_length = info['length']
        name ='file size.....:'
    else:
        # let's assume we have a directory structure
        print 'directory name: %s' % info['name']
        print 'files.........: '
        file_length = 0;
        for file in info['files']:
            path = ''
            for item in file['path']:
                if (path != ''):
                   path = path + "/"
                path = path + item
            print '   %s (%d)' % (path, file['length'])
            file_length += file['length']
        name = 'archive size..:'
    piece_number, last_piece_length = divmod(file_length, piece_length)
    print '%s %i (%i * %i + %i)' \
          % (name,file_length, piece_number, piece_length, last_piece_length)
    print 'announce url..: %s' % announce
    print
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