Using Tar

[Wade Shen]

I have a tar file that is too big to be extracted onto my HD... How would i go about untaring it
I have enough space for the untared files but not for the tar and the extracted files... I have a tape drive
and have tried to use it to tar the tar files and then extract it and pipe it to another tar:
	tar -xvf /dev/rct0 | tar -xvf emacs.tar

	This doesn't work either... Can anyone help?