How to compare a string value in an IF else condition using shell script

#!/bin/sh

if [ $# -lt 2 ] then echo "Usage $0 servername envtype" exit 1 fi

servername=$1 envtype=$2 srv=echo $servername | tr "a-z" "A-Z" srvtype=echo $envtype | tr "a-z" "A-Z" echo $srv echo $srvtype

if [ "${srv}" <> "SCP" ]; then if [" ${srv}" <> "RENTD" ]; then echo "Invalid servername" exit 1; fi fi

I am getting this error when running the shell script

• [ 2 -lt 2 ]
• servername=scp
• envtype=prd
• echo scp
• tr a-z A-Z
• srv=SCP
• echo prd
• tr a-z A-Z
• srvtype=PRD
• echo SCP SCP
• echo PRD PRD
• [ SCP ]
• [ SCP ] /tmp/testupper.sh: 19: [ SCP: not found