Printing to multiple spooled printers

If people are confused by this, basically what would be ideal is if I could create a device called /dev/slp0 or something and if I issue the command "cat testfile.txt > /dev/slp0" then it would issue the command "lpr -PPRINTER0 < testfile.txt", and it would have devices /dev/slp1 for PRINTER1 and /dev/slp2 for PRINTER2. Then the program would work. These device files have to be some sort of pipes or devices though, because I tried writing a chmod 755 shell script and the program just overwrote it with its output (if it doesn't see it as a device it thinks its supposed to dump the output to that filename). Does this help any or is it more confusing now? Please post a comment if you have any questions.

Thanks. This works good. For anyone who's looking back at this response, note that the line that says:
COMMAND=$2
should read:
COMMAND=$1