I am trying to copy .ssh/id_rsa.pub from our central server to multiple servers.  I have the following script which I usually use to push changes to the different servers.#!/bin/bashfor ip in $(<IPs); do    # Tell the remote server to start bash, but since its    # standard input is not a TTY it will start bash in    # noninteractive mode.    ssh -q $ip bash <<-'EOF'EOFdoneBut in this case, I need to cat the public key on the local server and then add that to multiple servers.  Is there a way by using the above here document script to execute the following.  cat .ssh/id_rsa.pub |ssh tony@0.0.0.0 'cat > .ssh/authorized_keys'
Copy ssh public key to multiple Linux hosts
shell script;ssh
With this simple loop you can automate it and spread to all remote servers.#!/bin/bashfor ip in `cat /home/list_of_servers`; do    ssh-copy-id -i ~/.ssh/id_rsa.pub $ipdone