Tar package compression and decompression Relative Path Problems

I. Problem description there is a demand now, and I don't know how to achieve compression: Tar czvf/Data/backup/test.tar.gz/data/a/B/Directory decompression: CD/Data/Test tar xzvf/Data/backup/Test.tar.gz: The decompressed file is/Data/test/data/a/B/Whether the directory can be compressed only keeps all directories below the directory./Instead of/data/a/B/Directory? 2. solution (1) Directly CD to the current directory for packaging and compression (2) use-Official documentation for the c parameter GNU Tar http:// Www.delorie.com/gnu/docs/tar/In this way, the tar czvf can be solved./Data/backup/test.tar.gz/data/a/B/Change directory to tar czvf/Data/backup/test.tar.gz-C/data//B directory-C is the temporary switch working directory, and-P is the absolute path. Here, only the-C parameter is used.