One-shot HTTP webserver to serve file contents using netcat

servefile.sh

serveit(){
clen=$(wc -c < "$1" | cut -f1 -d' ')
while true ; do
cat <<endheaders
HTTP/1.0 200 OK
Content-Type: application/octet-stream
Content-Length: $clen
Content-Disposition: attachment; filename="$1"

endheaders
cat "$1"
break;
done | nc -l -p 8789 ;
}