Change this:
`nohup tcpdump port 389 -i bond0 -s 0 -w /tmp/capture.pcap > nohup2.out 2>&1&`
to this:
nohup tcpdump port 389 -i bond0 -s 0 -w /tmp/capture.pcap > nohup2.out 2>&1 &
The backticks mean that the command should be run in a subshell and its output captured and substituted into a new command. For example, this command:
`echo foo bar`
is equivalent to this command:
foo bar
because it runs echo foo bar
, captures the output foo bar
, and then runs foo bar
. In your case you have absolutely no need of that (if only because you're redirecting the output to a file), so you can just drop them.