run_tcpdump.sh

#!/bin/bash -ex

home=$(dirname $0)
. "$home/env.sh"

sudo mkdir -p `date +$NFS_CAPTURE_DIR_FORMAT`
sudo chown -R $USER `date +$NFS_CAPTURE_DIR_FORMAT`

# Create captures in a directory hierarchy for the date. Lets us find
# captures by date later.
if [ ! -z $IF ]; then
    sudo -E tcpdump -v -i $IF -w "$CAPTURE_PATH_FORMAT" -G $TIME_LIMIT -s0 -Z $USER
else
	echo "No interface found."
fi