bash script to ssh multiple servers in a loop

ssh-loop-remove.sh

#!/bin/bash
for server in $(cat hosts.txt); do 
	IP=`echo "$server" | awk 'BEGIN {RS = "|"}; END {print $1}'`;
	HOST=`echo "$server" | awk 'BEGIN {FS = "|"}; END {print $1}'`;
	USER=`echo $HOST | sed 's/tst-centos-//g;s/\-.//g;'`;
	echo "$HOST($IP)"
	echo $USER
	ssh -nt $USER@$IP -i ssh/$USER 'sudo yum -y remove test-pkg && sudo rm -rf /var/lib/test' 
done