tcpdump filename with -C and -W option

I am trying to capture tcpdump in Linux and I used the -C and -W option to enable capturing tcpdump with file size limited to 250MB.

sudo tcpdump -i any -s0 -vvv -W 999 -C 250 -w FILENAME.pcap. -Z root

On the other hand, the output I am getting is

FILENAME.pcap.001
FILENAME.pcap.002
FILENAME.pcap.003

But I would like to know how to make the output file name into:

FILENAME001.pcap
FILENAME002.pcap
FILENAME003.pcap

Thanks for any help you can suggest!

Answer

Tcpdump has no such function built in. You can run something like this in the end to rename your files though:

for f in FILENAME.pcap.*; do
    mv "$f" "$(echo $f | sed 's/FILENAME.pcap.(.*)/FILENAME1.pcap/')";
done