spd.exe -M gctwh
spc wallet unlock. You will be prompted for a password. It will either be the current wallet's seed or a password you set. Please note that the password will not display on the command line when you type or copy/paste it.
spc wallet sweep. You will be prompted for a seed. Copy and paste the wallet you want to 'sweep' funds from. As with the password, the seed will not display on the command line.