invalid command name quartus_pow

Hi,

I am trying to run a TCL script which at first dumps the required verilog and then compiles it. I am also dumping the testbench for the design and using it as an input file for my power play analyzer. The Power play analysis is done by first invoking Modelsim Altera (by calling it in Quartus EDA tool Settings) and then dumping the VCD file which is made an input for the Power play analyzer. The problem I am facing is that the script runs fine till dumping all the VCD nodes. But after that, it says the quartus_pow is an invalid command. The exact command I am using is

quartus_pow --read_settings_files = on --write_settings_files=off <projectname>

When I am running the powerplay analyzer through the GUI, I can see this script getting executed, but when I am giving the script myself, quartus_pow is not recognized. Can you please help me out?

Thanks

Anandaroop Ghosh