Backup copy of tws_env script
When upgrading an agent or master domain manager, a backup copy of the tws_env script is created, and a new one is installed.
To address new product features, the upgrade installation process for a master domain manager and for agents installs a new version of the tws_env script in the directory <TWA_HOME>/TWS, where <TWA_HOME> is the HCL Workload Automation installation directory. A backup copy of your original version is created. in a backup directory. After the upgrade process, merge the content of the new version with the content of the original version to carry your customized content into the new version.
For more information, see Setting the environment variables.