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Easy and direct way to find this out.
There are 2 alternatives - vote for the best!
Needed a quick way to see if my server distro that I setup years ago was running 32bit or not, since with time I had forgotten.
Note: does not check _hardware_ e.g. /proc/cpuinfo but rather the kernel installed
This command tell you if your hardware is 32 or 64 bits even if you install a 32bits OS on a 64 bits hardware.
If your distro don't support the -q switch, try doing :
grep &>/dev/null '\<lm\>' /proc/cpuinfo && echo 64 bits || echo 32 bits
This is likely only valid on Solaris based systems. Unfortunately a lot of the more universal techniques for determining if a system is 32bit or 64bit on x86 solaris fail to give much more information than "i86pc"
If you can do better, submit your command here.
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