tar gzip compression level
# create tar -czvf projects.tar.gz projects/ # create with best compression level # without '-z' becouse of the use of '-I' tar -I 'gzip -9' -cvf projects.tar.gz projects/ # extract tar -xzvf projects.tar.gz -c, --create create a new archive -I, --use-compress-program PROG filter through PROG (must accept -d) -x, --extract, --get extract files from an archive -z, --gzip, --gunzip --ungzip -v, --verbose verbosely list files processed -f, --file ARCHIVE use archive file or device ARCHIVE tar [-] A --catenate --concatenate | c --create | d --diff --compare | --delete | r --append | t --list | --test-label | u --update | x --extract --get [options] [pathname ...]