Linux version doesn't work, the cyberprg.sh script just tries to run `ZZT` which isn't in my path
$ cat cyberprg.sh ZZT CYBERPRG.ZZT
$ ./cyberprg.sh ./cyberprg.sh: line 1: ZZT: command not found
If I changethe script to "./ZZT CYBERPRG.ZZT" then it works