z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

*0x18 Short 0x40
>*0x3c Short 0x6584C OS/2 linear
executable
>*0x3C Short 0x454e
>+54byte 1 OS/2 format
>+54byte 2 Windows format
0 short 0xFDF0 DOS library
0 string AH Halo bitmapped font file
0 short 0x601A Atara ST contiguous
executable
>14 long >0 – not stripped
0 byte 0X1F
>1 byte 0x1E Packed file
>1 byte 0x9D Compressed file
Related Information
The file command. Also, see ″Enabling the file Utility″ in z/OS UNIX System
Services Planning.
pax — Format of pax archives and special header summary files
USTAR archive format
Description
pax uses the USTAR archive format described in the tar file format description.
(For more information about the tar file format, see “tar — Format of tar archives”
on page 922.)
Special Header Summary File: example format:
#00
#IBMOS390_USTAR_VERS=1
#
# Archive Name: /tmp/spec.pax
#
# This file was created by the IBM z/OS pax or tar utility.
'# During the process of creating the archive from which this
# file was extracted, one or more of the source files to be
# stored in the archive was determined to have names or
# attributes that are not supported by the standard USTAR
# format (as described by POSIX.2 IEEE std 1003.2-1992).
# To preserve these files or these characteristics,
# one or more special header files (having the same name as
# this file) were inserted into the archive. Those files
# are recognized by z/OS pax and tar utilities and are
# used during extraction to restore the files to their
# original state.
#
Figure 1. Example of a Special Header Summary File (Part 1 of 3)
magic
Appendix H. File Formats 915