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Operating Systems Linux Red Hat Machine/Hardware platform/Processor type Post 302728505 by dextergenious on Thursday 8th of November 2012 02:13:58 AM
Old 11-08-2012
Machine/Hardware platform/Processor type

Hi,

I am just confused about these three things which are shown in the output of uname command. I am running RH lINUX 9.0 on hardware having Intel HT CPU. My uname shows

uname -p i686 (processor)
uname -m i686 (machine)
uname -i i386 (hardware)

I was about to install some source packages but didn't know which one of i686 or i386 should I choose.

What exactly is the concept of these three. Firstly please explain what is i686 and i386. As I know i386 is the old processor architecture and i686 is the latest one. Detailed explaination is appreciated !

Thanks and regards,

Dexter
 

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machid(1)							   User Commands							 machid(1)

NAME
machid, sun, iAPX286, i286, i386, i486, i860, pdp11, sparc, u3b, u3b2, u3b5, u3b15, vax, u370 - get processor type truth value SYNOPSIS
sun iAPX286 i386 pdp11 sparc u3b u3b2 u3b5 u3b15 vax u370 DESCRIPTION
The following commands will return a true value (exit code of 0) if you are using an instruction set that the command name indicates. sun True if you are on a Sun system. iAPX286 True if you are on a computer using an iAPX286 processor. i386 True if you are on a computer using an iAPX386 processor. pdp11 True if you are on a PDP-11/45tm or PDP-11/70tm. sparc True if you are on a computer using a SPARC-family processor. u3b True if you are on a 3B20 computer. u3b2 True if you are on a 3B2 computer. u3b5 True if you are on a 3B5 computer. u3b15 True if you are on a 3B15 computer. vax True if you are on a VAX-11/750tm or VAX-11/780tm. u370 True if you are on an IBM(R) System/370tm computer. The commands that do not apply will return a false (non-zero) value. These commands are often used within makefiles (see make(1S)) and shell scripts (see sh(1)) to increase portability. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
make(1S), sh(1), test(1), true(1), uname(1), attributes(5) NOTES
The machid family of commands is obsolete. Use uname -p and uname -m instead. SunOS 5.11 5 Jul 1990 machid(1)
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