Is tcl script language used in Modelsim?

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Modelsim provides friendly GUI. But it can also be operated through script language. I wonder whether it is tcl script language? And anybody can provide some good tutorial?

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Both Modelsim and Quartus can be controlled from Tcl scripts.

For an example, see this tutorial here:

http://www.alterawiki.com/wiki/using_the_usb-blaster_as_an_sopc/qsys_avalon-mm_master_tutorial

The Quartus scripts are called synth.tcl, while the Modelsim scripts are called sim.tcl.

Cheers,

Dave