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Man Pages

Manual Reference Pages  -  UNZOO (1)


unzoo - zoo archive extractor




unzoo [-l] [-v] <archive>[.zoo][<file>..]
unzoo -x [-abnpo] [-j <prefix>] <archive>[.zoo] [<file>..]


This manual page documents briefly the unzoo command. This manual page was written for the Debian distribution because the original program does not have a manual page.

unzoo is a program that lists or extracts the members of a zoo archive. A zoo archive is a file that contains several files, called its members, usually in compressed form to save space. unzoo can list all or selected members or extract all or selected members, i.e., uncompress them and write them to files. It cannot add new members or delete members. For this you need the zoo archiver, called zoo, written by Rahul Dhesi.

If you call unzoo with no arguments, it will first print a summary of the commands and then prompt for command lines interactively, until you enter an empty line.

Usually unzoo will only list or extract the latest generation of each member. But if you append ’;<nr>’ to a path name pattern the generation with the number <nr> is listed or extracted. <nr> itself can contain the wildcard characters ’?’ and ’*’, so appending ’;*’ to a path name pattern causes all generations to be listed or extracted.


A summary of options is included below.
-l list the members in the archive <archive>. For each member unzoo prints the size that the extracted file would have, the compression factor, the size that the member occupies in the archive (not counting the space needed to store the attributes such as the path name of the file), the date and time when the files were last modified, and finally the path name itself. Finally unzoo prints a grand total for the file sizes, the compression factor, and the member sizes.
<file> list only files matching at least one pattern, ’?’ matches any char, ’*’ matches any string.
-v list also the generation numbers and the comments, where higher numbers mean later generations. Members for which generations are disabled are listed with ’;0’.
-x extract the members from the archive <archive>. Members are stored with a full path name in the archive and if the operating system supports this, they will be extracted into appropriate subdirectories, which will be created on demand.
-a extract all members as text files (not only those with !TEXT! comments)
-b extract all members as binary files (even those with !TEXT! comments)
-n extract no members, only test the integrity. For each member the name is printed followed by ’-- tested’ if the member is intact or by ’-- error, CRC failed’ if it is not.
-p extract to stdout
-o extract over existing files without asking for confirmation. The default is to ask for confirmation. unzoo will never overwrite existing read-only files.
-j prepend the string <prefix> to all path names for the members before they are extracted. So for example if an archive contains absolute path names under UNIX, ’-j ./’ can be used to convert them to relative pathnames. Note that the directory <prefix> must exist, unzoo will not create it on demand.


This manual page was written by Thomas Schoepf <>, for the Debian GNU/Linux system (but may be used by others).
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--> UNZOO (1) August 23, 2002

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