wrun.sh: usage catchup invoke.sh: force terminal allocation on workers test1.sh: support control of number of worker processes are spawned, support -t to turn off random delay at startup count1.sh: actual do the counting in subprocs to avoid disk contention

#!/bin/bash
sudo adduser --disabled-password --GECOS "CC worker" cc
sudo su cc
cd ~cc
ssh-keygen -P "" -q -t rsa -f /home/cc/.ssh/id_rsa