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### 35.3 File Archiving Utilities

— Function File: bunzip2 (bzfile, dir)

> Unpack the bzip2 archive bzfile to the directory dir. If dir is not specified, it defaults to the current directory.

> See also: unpack, bzip2, tar, untar, gzip, gunzip, zip, unzip.

— Function File: entries = gzip (files)
— Function File: entries = gzip (files, outdir)

> Compress the list of files and/or directories specified in files. Each file is compressed separately and a new file with a '.gz' extension is created. The original file is not touched. If rootdir is defined the compressed versions of the files are placed in this directory.

> See also: gunzip, zip, tar.

— Function File: gunzip (gzfile, dir)

> Unpack the gzip archive gzfile to the directory dir. If dir is not specified, it defaults to the current directory. If the gzfile is a directory, all files in the directory will be recursively gunzipped.

> See also: unpack, bzip2, bunzip2, tar, untar, gzip, gunzip, zip, unzip.

— Function File: entries = tar (tarfile, files, root)

> Pack files files into the TAR archive tarfile. The list of files must be a string or a cell array of strings.

> The optional argument root changes the relative path of files from the current directory.

> If an output argument is requested the entries in the archive are returned in a cell array.

> See also: untar, gzip, gunzip, zip, unzip.

— Function File: untar (tarfile, dir)

> Unpack the TAR archive tarfile to the directory dir. If dir is not specified, it defaults to the current directory.

> See also: unpack, bzip2, bunzip2, tar, gzip, gunzip, zip, unzip.

— Function File: entries = zip (zipfile, files)
— Function File: entries = zip (zipfile, files, rootdir)

> Compress the list of files and/or directories specified in files into the archive zipfiles in the same directory. If rootdir is defined the files is located relative to rootdir rather than the current directory

> See also: unzip,tar.

— Function File: unzip (zipfile, dir)

> Unpack the ZIP archive zipfile to the directory dir. If dir is not specified, it defaults to the current directory.

> See also: unpack, bzip2, bunzip2, tar, untar, gzip, gunzip, zip.

— Function File: pack ()

> This function is provided for compatibility with Matlab, but it doesn't actually do anything.

— Function File: files = unpack (file, dir)
— Function File: files = unpack (file, dir, filetype)

> Unpack the archive file based on its extension to the directory dir. If file is a cellstr, then all files will be handled individually. If dir is not specified, it defaults to the current directory. It returns a list of files unpacked. If a directory is in the file list, then the filetype to unpack must also be specified.

> The files includes the entire path to the output files.

> See also: bzip2,bunzip2,tar,untar,gzip,gunzip,zip,unzip.