You are not actually reading anything, your commands just open and close files.
(OPEN only establishes a connection between the unit number and the disk file, with some properties as specified - read/write, formatted/unformatted, ..., and you also have to explicitly perform some kind of I/O operation on that file in order to move data around)
open unít 11 read form name my_rtf.inp
read rtf form unit 11
you may want to ry the simpler syntax:
read rtf form name my_rtf.inp
This works for almost all read/write statements (one exception is when you read a sequence from a PDB file)
Use the example files in the Script Archive, and modify them to suit your needs!