I have a laptop operating under Fedora Core 3. I am able to read in data thru the serial port using a Perl script. However, I'd like to send out commands to a piece of laboratory equipment. What is the best way to do this? Should I use minicom? If so, how do I specifically do this? Can I just echo commands out thru the port (/dev/ttyS0), e.g.,

echo mr500 > /dev/ttyS0