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Find in files

asked 2019-11-28 15:25:37 +0000

atchoubaka gravatar image


I have captured many files of 250MB each for days. Now I have a bit more than 4000 files.

I'd like to find the files where there is a specific flags (0x011). Is there an option where I can "find in files" an expression ?

It will be faster than oppening each file and check with the display filter.

For instance, Notepadd++ has this feature and it's very efficient.

Thanks for your help !

NB : for the next time, I'll set a better capture filter (I just found it). But for this time, I need to retrieve info from the files already cpatured.

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Specific flags in which protocol? You can also use the scripting language of your choice and tshark to run the search over multiple files.

grahamb gravatar imagegrahamb ( 2019-11-28 15:42:36 +0000 )edit

Hi Graham, tks for your reply.

flags = tcp.flags=0x011.

if tshark can do this, perfect, what should be the command then ?

atchoubaka gravatar imageatchoubaka ( 2019-11-28 15:59:39 +0000 )edit

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answered 2019-11-28 16:05:50 +0000

grahamb gravatar image

Try this:

tshark -r my.pcap -Y "tcp.flags == 0x011"
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tks. i'll try.

atchoubaka gravatar imageatchoubaka ( 2019-11-28 17:07:07 +0000 )edit

tshark: The specified data link type "tcp.flags == 0x011" isn't valid

atchoubaka gravatar imageatchoubaka ( 2019-11-28 17:12:57 +0000 )edit

got it... I did not write -Y but -y. with -Y, works perfectly. tks

atchoubaka gravatar imageatchoubaka ( 2019-11-28 17:16:59 +0000 )edit

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Asked: 2019-11-28 15:25:37 +0000

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Last updated: Nov 28 '19