Tar overcame some of the problems that
cp had with symbolic links.
cpio handles special files, traditional
tar's way of handling multiple hard links to a file places only
one copy of the link on the tape, but the name attached to that copy is the
only one you can use to retrieve the file;
puts one copy for every link, but you can retrieve it using any of the names.
tar command changed its option for
between Potato and Woody, so use --bzip2 in scripts instead of its
short form -I (Potato) or -j (Woody).