the gzip:
bzip2:
the tar: packing compression
-c archive
-x archive
-z gzip archive
-j bzip2 archive
-v display compression or decompression process V (View)
-f using filename
Example:
the tar -cvf / Home /abc.tar / home / abc packing only, not compressed
tar -zcvf /home/abc.tar.gz / home / abc packaged and compressed with gzip
tar -jcvf /home/abc.tar.bz2 / home / abc packaged, and compressed with bzip2
Of course, if you want to decompress, directly replace the above command tar -cvf / tar -zcvf / tar -jcvf the "c" into "x" on it.