Second version on the minetlab.com website is build also with help of sed editor. I did not use reading file long time. But it’s good, and quick solution, line like this:
sed -e '/#anything#/r aDirectory/myfile.txt' -e 's|#anything#||' < $wdir/w1/mypage.html > $webdir/mypage.html
Google search: Potential gadgets for Control Web USB thermometers: TEMPer1, TEMPer2, TEMPer Hum – with humidity meter, Indoor/Outdoor, USBGeek, and USB weight sensors: Phidget, to 10lb at RadioShack, Stamps.com 5LB USB scale , relay IO 5AMP interface ADU200,