./ffmpeg -re -v 24 -i http://sakZZZZ.fastbroad.com/i/topchan109_1@ZZZZZ/master.m3u8 -vcodec libx264 -acodec mp3 -ar 44100  -f flv "rtmp://p.epZZZZZ.i.akamaientrypoint.net/EntryPoint/aktest_1_1200@ZZZZZ  flashver=FMLE/3.0\20(compatible;\20FMSc/1.0) pubUser=ZZZZZZ pubPasswd=ZZZZZZ" 2>&1 | cat > error-msg

cat error-msg

Unknown option  flashver
Valid RTMP options are:

     socks string   Use the specified SOCKS proxy
       app string   Name of target app on server
     tcUrl string   URL to played stream
   pageUrl string   URL of played media's web page
    swfUrl string   URL to player SWF file
  flashver string   Flash version string (default LNX 10,0,32,18)
      conn AMF      Append arbitrary AMF data to Connect message
  playpath string   Path to target media on server
  playlist boolean  Set playlist before play command
      live boolean  Stream is live, no seeking possible
 subscribe string   Stream to subscribe to
       jtv string   Justin.tv authentication token
     token string   Key for SecureToken response
    swfVfy boolean  Perform SWF Verification
    swfAge integer  Number of days to use cached SWF hash
     start integer  Stream start position in milliseconds
      stop integer  Stream stop position in milliseconds
    buffer integer  Buffer time in milliseconds
   timeout integer  Session timeout in seconds
   pubUser string   Publisher username
 pubPasswd string   Publisher password

rtmp://p.ep54371.i.akamaientrypoint.net/EntryPoint/aktest_1_1200@54371  flashver=FMLE/3.0\20(compatible;\20FMSc/1.0) pubUser=401425 pubPasswd=ThM7GT: Unknown error occurred



./ffmpeg
ffmpeg version git-2015-10-06-a342c2a Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
  configuration: --prefix=/home/ya/opt/ffmpeg --enable-librtmp --enable-gpl --enable-libx264 --enable-libmp3lame
  libavutil      55.  2.100 / 55.  2.100
  libavcodec     57.  4.100 / 57.  4.100
  libavformat    57.  3.100 / 57.  3.100
  libavdevice    57.  0.100 / 57.  0.100
  libavfilter     6. 10.100 /  6. 10.100
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.100 /  2.  0.100
  libpostproc    54.  0.100 / 54.  0.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

Use -h to get full help or, even better, run 'man ffmpeg'