This is the INSTALL file for the perl script: trexhgt.

If you are reading this, you preseumably have already decompressed a
distributino of the script, which created the directory containing this file.

To install the script, manpage, test, etc in 'the right place', simply 

            perl Makefile.PL
            make
            make test
            #and, assuming all tests succeed
            make install
            #you may want to do the above as root