Hi, is there any tool in the Gentoo portage which may speed up (make it mopre efficient) the following task:
On my HD there are data I want to copy to two identical external HDs. These HDs are of the same type/model and each is separately connectable via USB to my PC (...these two of the typical mobile external USB-HDs). Instead of copying the data twice from my PC to eah of the HDs I want to do it once...like I would be able to give the cp-command two instead of one target where to copy two. The result should be two identically populated external HDs, each of them useable/readable without the need to the other one. What tool of the portage tree I able to accomplish this task? Best regards, mcc