Getting Error in R12 FNDLOAD: command not found

uploading or downloading FNDLOADS we may get following error

FNDLOAD: command not found

Solution: Apply . Env file as shown below

After apply .env file the error will be resoled FNDLOAD: command not found issue 

Run command:

cd /prod/oracle/apps/apps_st/appl/

. APPSGST_testr12.env