Modelsim "Force" question

[Altera_Forum]

in Modelsim what does this command "Force" ? I cannot decode it for the life of me  

 foreach filename [glob $src_dir/*.$mem_type] {  file copy -force $filename $dest_dir/[file tail $filename]   We're copying something but I have no idea what   Thank you

[Altera_Forum]

It forces the copy to occur even if the target file already exists. 

 www.tcl.tk/man/tcl/tclcmd/file.htm#m10 (www.tcl.tk/man/tcl/tclcmd/file.htm#m10)

[Altera_Forum]

This is just a parameter on the file copy command. 

Modelsim has an actual "force" command, allowing you to override signal values in a simulation.