ok, how do I run that command to make the txt files executable.

I tried going into xterm and typing in

chmod +x file:/home/knoppix/textfile.txt

but I get an error saying it failed to get the attributes of the file: no such file or directory.

Also, since i'm doing this on a home network now, will I need to determine the correct IP for the scripts? Since there are multiple computers on this network how will the script know which computer I'm trying to work with?