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Maximum RPM: Taking the Red Hat Package Manager to the Limit
Prev	Appendix A. Format of the RPM File	Next

Identifying RPM files with the file(1) command

The magic file on most UNIX-like systems today should have the necessary information to identify RPM files. But in case your system doesn't, the following information can be added to the file:

#-------------------------------------------------------------------
#
# RPM: file(1) magic for Red Hat Packages
#
0       beshort         0xedab          
>2      beshort         0xeedb          RPM
>>4     byte            x               v%d
>>6     beshort         0               bin
>>6     beshort         1               src
>>8     beshort         1               i386
>>8     beshort         2               Alpha
>>8     beshort         3               Sparc
>>8     beshort         4               MIPS
>>8     beshort         5               PowerPC
>>8     beshort         6               68000
>>8     beshort         7               SGI
>>10    string          x               %s

The output of the file command is succinct:

# file baz
baz: RPM v3 bin i386 vlock-1.0-2
#

In this case, the file called baz is a version 3 format RPM file containing release 2 of version 1.0 of the vlock package, which has been built for the Intel x86 architecture.

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Tools For Studying RPM Files	Up	The `rpmrc` File