Wireshark-users: Re: [Wireshark-users] how to print time with epoch formation by tshark
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From: Stephen Fisher <stephentfisher@xxxxxxxxx>
Date: Tue, 1 Jul 2008 09:20:55 -0600
On Tue, Jul 01, 2008 at 05:01:19PM +0800, Ian jonhson wrote:

> I would like to print the captured packet to standard oupout with 
> epoch time formation. The command I used is:
> 
>  tshark -i 1 -n -f "udp port 8080" -t e -T fields -e frame.time -e
> XXXXXX > /tmp/my_tshark_data.$(date +%F-%T)
> 
> The parameter "-t e" seems not to take effect.

This is because the -t e option only applies to the normal timestamps 
that tshark shows, not to the frame.time field.  The time format is 
stored in the "recent" settings file.  The easiest way to change this 
would be to open Wiresdhark and change the time format from the View - 
Time Display Format menu if you have access to the GUI.  You could also 
see if you have a ~/.wireshark/recent file and edit the gui.time_format 
setting there.


Steve