i have this in my .zshrc which provides same functionality: lk() { if [ $# -eq 0 ]; then local output=$(sudo lsof -iTCP -sTCP:LISTEN -n -P) e

i have this in my .zshrc which provides same functionality: lk() { if [ $# -eq 0 ]; then local output=$(sudo lsof -iTCP -sTCP:LISTEN -n -P) elif [ $# -eq 1 ]; then local output=$(sudo lsof -iTCP -sTCP:LISTEN -n -P | grep -i --color=always $1) else echo "find and kill processes listening on ports. Usage: lk [pattern]" return 1 fi if [ -z "$output" ]; then echo "No listening processes found." return 0 fi # Show header + results echo "$(sudo lsof -iTCP -sTCP:LISTEN -n -P | head -1)" echo "$output" echo "" # Extract unique PIDs (skip the header row if no grep was applied) local pids=($(echo "$output" | awk '{print $2}' | grep -E '^[0-9]+$' | sort -u)) if [ ${#pids[@]} -eq 0 ]; then echo "No PIDs found." return 0 fi echo "PIDs to kill: ${pids[*]}" echo -n "Kill these ${#pids[@]} process(es)? [y/N] " read -r confirm if [[ "$confirm" =~ ^[Yy]$ ]]; then for pid in "${pids[@]}"; do echo "Killing PID $pid..." sudo kill -9 $pid done echo "Done." else echo "Aborted." fi }