How do you write a unix command for send myfile to the user Id number DU007?

To send a file named myfile to the user with ID number DU007, you can use the scp command if you are transferring it to a remote server or cp if it's on the same system. For example, use scp myfile username@hostname:/path/to/destination for remote transfers, replacing username and hostname appropriately. If the user is local, you can simply use cp myfile /home/DU007/. Make sure to have the appropriate permissions to access the user’s home directory.