From MorphOS Library
From the original xadmaster.library manual:
XADUnTar - A shell tool to extract data from Tar archives and compressed Tar archives. This includes .tar.bz, .tar.bz2, .tar.gz, .tar.Z, .tar and others.
FROM/A, DEST=DESTDIR, PASSWORD/K, FILE/M, NAMESIZE/K/N, FFS=OFS/S, SFS/S, INFO=LIST/S, Q=QUIET/S, AM=ASKMAKEDIR/S, OW=OVERWRITE/S, NA=NOABS/S, ND=NODATE/S, NE=NOEXTERN/S, NKP=NOKILLPART/S, NP=NOPROT/S, NT=NOTREE/S, SHORTNAME/S
FROM specifies the file archive that should be handled. DESTDIR is the destination directory. The directory is created when it does not exist (except if ASKMAKEDIR is turned on and you select no). There are some dangerous archives using absolute path names (e.g. starting with LIBS: or RAM:). xadUnTar archives these files to their absolute position (except NOTREE or NOABS is used). PASSWORD can be used to supply a password for unarchiving of encrypted archives. This argument requires the keyword PASSWORD. FILE allows you to select filename(s) (including patterns), which should be extracted. When FILE is not given, all files are extracted. With FILE only matching files are extracted. NOTE: When you do not use NOTREE keyword, the patterns check includes checks for directory structure as well. NAMESIZE allows to specify the maximum size of a filename. This is useful as some archives from unix machines have longer filenames than the Amiga filesystem allows. Whenever a name is longer than the namesize value, you are asked to enter a shorter name. Names of directories are truncated without requests. FFS or OFS replace NAMESIZE argument and provide a standard length of 30 characters, which is the value of our standard file system. SFS provide a length of 100 characters, the SmartFilesystem standard. NOEXTERN prohibits the use of external clients for recognition purposes. INFO or LIST prints information about the archive and does not do any unarchiving. OVERWRITE forces the program to overwrite an already existing destination file. Normally you are asked about that. NOTREE skips all directory names and writes the files directly to destination directory. SHORTNAME shortens the displayed name for INFO and extract. Now only the filename instead of path and filename is presented. ASKMAKEDIR forces the program to ask you, if a missing directory should be created. NOPROT prevents setting file protection bits and NODATE prevents setting date information. NOABS prevents creation of absolute path names. If you specify NOKILLPART keyword, partial or corrupt output files no longer are deleted. The QUIET option turns off the progress report, but also disables questions to skip, rename or overwrite files.
Shell> xadUnTar archive.tar RAM: Unarchive the tar archive to RAM: Shell> xadUnTar archive.tar.gz RAM: #?.txt #?.doc Contents Unarchive all .txt and .doc file and the file "Contents" of gzipped tar archive to RAM: Shell> xadUnTar archive.tar.bz LIST Tells information about archive.tar.bz file.