ref: c240c428481aa4cd9aadeb95833161b52efc1e96
dir: /bin/recv/
#!/bin/rc fn usage { >[2=1] echo 'recv port [file]' exit usage } port=$1 if(~ $#port 0) usage file=$2 if(~ $#file 0) file=/fd/1 >[9=1] >[9]$file aux/listen1 -t tcp!*!$port rc -c '/bin/cat >[1=9]'