Yes you can.
You can use the tabcmd for publishing multiple workbooks.
Create a batch file . here's an example
tabcmd login -u admin -p admin --site Site1
tabcmd publish Sample1.twbx -o
tabcmd publish Sample2.twbx -o
tabcmd publish Sample3.twbx -o
tabcmd publish Sample4.twbx -o
tabcmd publish Sample5.twbx -o
schedule this batch file on when they should run and this will automatically publish the workbooks for you.
Hope this helps.
That was exactly what I was looking for. Thanks for the sample batch file too. I was thinking of maybe creating a loop for the various workbooks to update.