This is basic method how to install Terraform on CentOS 7.
1. Update OS and Install nesessary tools
# yum update
# yum install wget unzip
2. Download Terraform
# wget https://releases.hashicorp.com/terraform/0.13.2/terraform_0.13.2_linux_amd64.zip
3. Unpack to /usr/local/bin
# unzip ./terraform_0.13.2_linux_amd64.zip -d /usr/local/bin/
+ Now install is done and now let’s verify terraform version
# terraform -v
Terraform v0.13.2