Revision as of 20:55, 17 December 2019

Internal

When tar is executed as root, the file permissions and owner are preserved.

Preserve permissions, default when the root executes the command.

Preserve order (same order). Sort names to extract to match archive.

Archive maintaining the user IDs and file permissions:

tar -cvspf .../archive.tar *

Note that the name of the archive file to be created must immediately follow -f, without any interceding parameters.

To also gzip:

tar cfv - ./mydir | gzip > mydir.tgz

Restore preserving the user ID and file permissions (if done as root, the behavior is implicit):

tar -xvspf .../archive.tar

tar -xf archive.tar some/specific/file.txt