+
+ echo "${indent_unit}-->"
+
+ # TODO Populate pid->cmd dict from `ps -eo pid,comm` and lookup progs there
+ # since netstat -p output comes out truncated.
+
+ sudo -n netstat -tulnp \
+ | awk -v indent="${indent_unit}${indent_unit}" '
+ NR > 2 && ((/^tcp/ && proc = $7) || (/^udp/ && proc = $6)) {
+ protocol = $1
+ addr = $4
+ port = a[split(addr, a, ":")]
+ name = p[split(proc, p, "/")]
+ names[name] = 1
+ protocols[protocol] = 1
+ if (!seen[protocol, name, port]++)
+ ports[protocol, name, ++seen[protocol, name]] = port
+ }
+
+ END {
+ for (protocol in protocols) {
+ printf "%s%s\t", indent, toupper(protocol)
+ for (name in names) {
+ if (n = seen[protocol, name]) {
+ sep = ""
+ printf "%s:", name
+ for (i = 1; i <= n; i++) {
+ printf "%s%d", sep, ports[protocol, name, i]
+ sep = ","
+ }
+ printf " "
+ }
+ }
+ printf "\n"
+ }
+ }'
+
+ echo "${indent_unit}<->"
+
+ printf '%sTCP\t' "${indent_unit}${indent_unit}"
+ sudo -n netstat -tnp \
+ | awk 'NR > 2 && $6 == "ESTABLISHED" {print $7}' \
+ | awk '{sub("^[0-9]+/", ""); print}' \