Redefining Blocks with a script

I need to redefine a number of Blocks in numerous existing drawings. I have redrawn the Blocks and Wblocked each of them to individual drawings. From within a drawing that requires the redefinitions I run a script to insert the new version eg:

-insert

detector=C:/.../detector.dwg

the command asks for an insertion point - since I do not need to actually insert a copy of the Block, I press ESC at this stage.

I then repeat this with the appropriate script for each of the Blocks to be redefined.

I have tried to create a combined script to redefine all the Blocks in a single operation by inserting ESC between the lines eg:

-insert

detector=C:/.../detector.dwg

ESC

-insert

alarm=C:/.../alarm.dwg

but this doesn't work - the script hangs at the first insertion, asking for the insertion point - pressing ESC simply terminates the script.

Can I get the script to skip the insertion and go on to the next?

Or can I call one script from within another?

Just insert the block then

Erase last

next line in you script

not pretty but should work carefull though if redefine required yes etc need the correct number of enters (new line)