If you want file in an appended piece to replace one in the main piece, use the same relative path/name if you want to create distinct files use distinct relative paths/names. If you use relative paths for files in the archive, as is common and preferred today, when you extract from the concatenated result all the entries (or all the selected ones) are extracted relative to the same new directory, so make sure you create each archive 'piece' with relative paths that work together as desired. # or gunzip and gunzip < | tar -xf - forms. # or tar -cf - file1 |gzip >tar1.tgz and similarly for 2, see below tar command options: -j : Call bzip2 to decompress file. c : Decompress to standard output so-that tar command can take input. Where, bzip2 command options: -d : Force decompression. ![]() In recent years this has become much less common, and GNU tar now doesn't support it by default you have to specify -i (or long form -ignore-zeros) and then it works fine: $ printf 'ONEONEONE?d\n' >file2 OR use gnu/tar command syntax: tar -jxvf 2 tar -jxvf filename.tbz2 tar -jxvf filename.tbz. Replace FILENAME with whatever filename you want and DIRECTORY with the path to the directory you. (Those drives could separate logical files on a tape using a 'tape mark' but Unix systems didn't support metadata aka labels on magtape and managing large numbers of tape files by physical numeric position only was a PITA, so the tar approach of adding to an existing archive was much preferred.) Put a Directory into a TAR file and Compress it with BZIP2. This was effectively required because '(t)ape (ar)chive' was designed to and did use magnetic tape for backup and interchange, and the magnetic tape drives of the 1950s-1980s (roughly) could not safely 'rewrite' (update) existing data only add to the end.
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