How can I export a file from wirehark to display in non-hexadecimal format

Question

Im tring to export the file from wirehark, so I could search in it. now every parameter i am trying to make does not give a simple raw format like tcp raw view when i follow tcp stream.
all he gives me is a hexadecimal representation of the packages and a string in this form of format breaks and cannot be searchable. I want it to be exported to the search format. It can be done? this is what i am getting now:

0000 48 54 54 50 2f 31 2e 31 20 35 30 30 20 49 6e 74 HTTP/1.1 500 Int 0010 65 72 6e 61 6c 20 53 65 72 76 65 72 20 45 72 72 ernal Server Err 0020 6f 72 0d 0a 44 61 74 65 3a 20 54 68 75 2c 20 31 or..Date: Thu, 1 0030 30 20 4e 6f 76 20 32 30 31 31 20 31 36 3a 33 32 0 Nov 2011 16:32 0040 3a 35 37 20 47 4d 54 0d 0a 50 72 61 67 6d 61 3a :57 GMT..Pragma: 0050 20 6e 6f 2d 63 61 63 68 65 0d 0a 43 6f 6e 74 65 no-cache..Conte 

Answer 1

How about using TShark, sed and tr?
tshark -r Clmt_04.pcap -x -R "frame.number <40" | sed 's / ^. {56} // '| tr -d '\ n'> Clmt-04.txt

tshark -x
add ASCII hex dump output (Packet Bytes)

sed 's / ^. {56} // '
delete the first 56 characters of each line

tr -d '\ n'
delete new line symbol

Hope this helps

Answer 2

After defining the tcp stream, you can use the following command with tshark :

 tshark -nr <file>.pcapng -q -z follow,tcp,ascii,XXXX 

Where XXXX is the TCP stream.