Linux Compression and Archiving tar part2

2020 07 08 15 05 22
tar - an archiving utility
tar -cf archive.tar foo bar # Create archive.tar from files foo and bar.
tar -tvf archive.tar # List all files in archive.tar verbosely.
tar -xf archive.tar # Extract all files from archive.tar.

-A, --catenate, --concatenate append tar files to an archive
-c, --create create a new archive
-d, --diff, --compare find differences between archive and file system
--delete delete from the archive (not on mag tapes!)
-r, --append append files to the end of an archive
-t, --list list the contents of an archive
--test-label test the archive volume label and exit
-u, --update only append files newer than copy in archive
-x, --extract, --get extract files from an archive

Compression options:

-a, --auto-compress use archive suffix to determine the compression
program
-I, --use-compress-program=PROG
filter through PROG (must accept -d)
-j, --bzip2 filter the archive through bzip2
-J, --xz filter the archive through xz
--lzip filter the archive through lzip
--lzma filter the archive through xz --format=lzma
--lzop filter the archive through lzop
--no-auto-compress do not use archive suffix to determine the
compression program
-z, --gzip, --gunzip, --ungzip filter the archive through gzip
-Z, --compress, --uncompress filter the archive through compress
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tar -cvf a.tar /etc
ls -lh
du -h a.tar
du -h /etc | tail -1

mkdir td1
dd if=/dev/zero of=/root/td1/tf1 bs=10 count=10240
dd if=/dev/zero of=/root/td1/tf2 bs=10 count=10240
--create 5-10 files like this
du -h td1
ls -lh td1
tar -cvf td1.tar td1
ls -lh td1*
du -h td1*
ls
ls td1
ls td1.tar

tar -tvf td1.tar

mkdir tardata1

tar -xvf td1.tar -C tardata1/
ls tardata1/
ls tardata1/td1/
ls
rm -f td1.tar
rm -rf tardata1/td1
ls
ls tardata1/
ls td1

tar -cvf td1.tar td1/
tar -tvf td1.tar
ls -lh

tar -xvf td1.tar -C tardata1/
ls tardata1/
ls tardata1/td1/


-z, --gzip
tar -cvzf td1.tar.gz td1/
tar -tzf td1.tar.gz
tar -xvzf td1.tar.gz

-j, --bzip2
tar -cvjf td1.tar.bz2 td1/
tar -xjf td1.tar.bz2