From 5ffc3561eda57963e5b88b74816184869574f66e Mon Sep 17 00:00:00 2001 From: Jacob Salmela Date: Wed, 11 Apr 2018 20:35:51 -0500 Subject: [PATCH] implement dschapers suggestions--better command, less subshells, and finer formatting Signed-off-by: Jacob Salmela --- advanced/Scripts/piholeDebug.sh | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/advanced/Scripts/piholeDebug.sh b/advanced/Scripts/piholeDebug.sh index 633fb7a9..44e71a25 100755 --- a/advanced/Scripts/piholeDebug.sh +++ b/advanced/Scripts/piholeDebug.sh @@ -652,15 +652,22 @@ check_required_ports() { # Sort the addresses and remove duplicates while IFS= read -r line; do ports_in_use+=( "$line" ) - done < <( lsof -i -P -n | awk -F' ' '/LISTEN/ {print $1, $9}' | sort -n | tr -d '[*]\r' | uniq | awk '{print $2, $1}' ) + done < <( lsof -iTCP -sTCP:LISTEN -P -n +c 10 ) # Now that we have the values stored, for i in "${!ports_in_use[@]}"; do # loop through them and assign some local variables - local port_number - port_number="$(echo "${ports_in_use[$i]}" | awk '{print $1}')" local service_name - service_name=$(echo "${ports_in_use[$i]}" | awk '{print $2}') + service_name=$(echo "${ports_in_use[$i]}" | awk '{print $1}') + local protocol_type + protocol_type=$(echo "${ports_in_use[$i]}" | awk '{print $5}') + local port_number + port_number="$(echo "${ports_in_use[$i]}" | awk '{print $9}')" + + # Skip the line if it's the titles of the columns the lsof command produces + if [[ "${service_name}" == COMMAND ]]; then + continue + fi # Use a case statement to determine if the right services are using the right ports case "${port_number}" in 53) compare_port_to_service_assigned "${resolver}" @@ -670,7 +677,7 @@ check_required_ports() { 4711) compare_port_to_service_assigned "${ftl}" ;; # If it's not a default port that Pi-hole needs, just print it out for the user to see - *) log_write "[${port_number}] is in use by ${service_name}"; + *) log_write "${port_number} ${service_name} (${protocol_type})"; esac done }