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Determining if Linux is 64 or 32 bit

Recently, I had to find out if my linux was 32 or 64 bit.

Turns out that x86_64 is 64 bit.


$uname -a 

produced...

 Linux yyy.xxx.local 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

$file /sbin/init

produced...

/sbin/init: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped 

$ arch
i686

$ uname -m
 i686

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