pdf - Product Description File
A Product Description File describes product files contained in the
HP-UX operating system. It consists of a file containing a single
line entry for each file described, where each entry contains the
Fields are separated by a colon (:), and contain the information
pathname Absolute pathname of the file (starts with /). If
pathname is preceded by ?, it is an optional file
that may or may not be present on the system.
owner Symbolic or numeric ID of the owner of the file.
group Symbolic or numeric ID of the group of the file.
mode Symbolic representation of file type and
permission information as displayed by the ls -l
size Size of the file in bytes. In the case of device
special files, it is the major/minor number.
Directory sizes are not recorded.
links Number of hard links to pathname.
version Numeric value of the revision of the file.
Commands supporting PDFs determine this value by
invoking the what command on the file and
searching for a revision number (see what(1)). If
no revision is found, ident invoked (see
ident(1)). The version number recorded is the
first one encountered. If no version number is
found, the field is empty.
checksum Result of the application of the Ethernet (and
hence IEEE 802.3) CRC checksum algorithm to the
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linked_to File to which pathname is linked, whether with a
hard or symbolic link. If pathname is not a link,
this field is empty.
Some commands (namely pdfdiff and pdfck) rely on the convention that
one file in a set of hard links is considered the primary file,
indicating no linked_to file in the PDF, while the remaining files in
the set all indicate the primary file as the linked_to (see
pdfdiff(1M) and pdfck(1M)). This convention prevents double counting
in size calculations, and allows some efficiencies in algorithms for
checking consistency of links.
Empty fields indicate a ``don't care'' status. Any field except
pathname can be empty.
comment lines in the file begin with the percent character (%). The
first line of the file is always the comment:
% Product Description File
The second comment line is produced by the mkpdf command's -c option.
For HP-UX files, this comment usually indicates the product name and
Here is an example product description file:
% Product Description File
% fileset TEST, Release 1.0
% total size is 160172 bytes.
% total size is 158 blocks.
The checksum algorithm is different than that used by the 7.0 Release
version of the commands.
Use of PDFs is discouraged since this functionality is obsolete and is
being replaced with Software Distributor (see sd(4)).
The specification of PDF is derived from an early draft proposal for
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Bill of Materials in IEEE POSIX P1003.2 (Draft 2). This proposal was
later dropped from the standard. The implementation is by HP.
mkpdf(1M), pdfdiff(1M), pdfck(1M).
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