How do I kill whatever process is listening to a particular port?

code.sh

function killport {
    if [ $1 == '-h' ] || [ -z $1 ]; then
	echo '`killport <PORT>` finds the process listening to the specified port and kills it.'
    else
	process_line=`sudo lsof -i :$1 | tail -1`
	if [ "$process_line" == "" ]; then
	    echo "no processes listening on $1"
	else
	    process_name=`echo "$process_line" | awk '{print $1}'`
	    echo "killing $process_name"
	    sudo kill `echo "$process_line" | awk '{print $2}'`
	fi
    fi
}

summary.md

Add the attached bash function to your .bashrc (or bash_profile), then source .bashrc (or bash_profile) and use it like this:

$ killport 8000

killport will tell you the name of the killed process, or it will let you know if it couldn't find any process with that port open.

tags.json

["bash","kill","port"]

this is great - thanks!