how to send tshark GRE decoded packets only into a file readable by wireshark

["Noel, Andre (6024395)" <andre.noel () bell ca>]

Hello,

I'm using tshark to  decode  GRE and it working fine using this command :    tshark -d gre.proto==0,eth -r  
<MyFilemane> (I  use also  the switch -V to see more details)

I get this:   309 192.168.40.20 -> 224.0.0.18   VRRP Announcement (v2) 110 10.500043720 0.393136560 10.500043720 
2015-02-26 22:14:11.118772620   (  with -V I get all the fields as seen in Wireshark)

It's good but I can only see the result on screen or   send them into a text file using " >  MyFile.txt"

The question is, is there a way I can save the result (decoded GRE)  into a file so I could reopen it with Wireshark ?  
 I did not find a way so far...

Regards.

Andre

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