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Linux 32bit or 64bit


 
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Operating Systems Linux Linux 32bit or 64bit
# 1  
Old 09-09-2007
Question Linux 32bit or 64bit

Hi,

I want to know what is command to know which will tell wheather linux is 32 or 64 bit
This User Gave Thanks to manoj.solaris For This Post:
# 2  
Old 09-09-2007
If you have gcc installed then compile a trivial "Hello World" program with the "-m64" option, and see if it runs.
# 3  
Old 09-09-2007
You can also try:
Code:
uname -m

, but this may only tell you your machine's architecture!
# 4  
Old 09-16-2007
I am not an expert but the "getconf" command may be what you need:

Code:
getconf -a | grep  FILESIZEBITS

PLEASE NOTE. I am retracting my answer above, because it's stupid. "getconf -a" does give some good info though all by itself, just not what you are looking for. Smilie

Last edited by cassj; 09-16-2007 at 04:14 PM..
# 5  
Old 09-16-2007
64-bit or 32-bit OS

uname -a

If its 64-bit linux, it shows x86_64 in the output of the above uname command. Otherwise its 32-bit .

Hope it helps.

Cheers, Bru.
# 6  
Old 09-16-2007
Quote:
Originally Posted by Crazy_murli
If its 64-bit linux, it shows x86_64 in the output of the above uname command. Otherwise its 32-bit .
Not true, what happens if it's 64 bit Linux running on DEC-Alpha, Power PC, Itanium, PA-RISC 2.0, ultra-sparc, MIPS, .... etc?

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