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Check if system is 32bit or 64bit

Terminal - Check if system is 32bit or 64bit
getconf LONG_BIT
2012-12-12 23:51:51
User: varghjarta
Functions: getconf
20
Check if system is 32bit or 64bit

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

Alternatives

There are 2 alternatives - vote for the best!

Terminal - Alternatives
getconf LONG_BIT
2009-08-08 21:22:19
User: caiosba
Functions: getconf
Tags: getconf 32 64
95

Easy and direct way to find this out.

arch
sudo lshw -C cpu|grep width
isainfo -v
2013-01-04 03:07:28
User: halcyonblue
1

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"

grep -q '\<lm\>' /proc/cpuinfo && echo 64 bits || echo 32 bits
2013-02-09 13:01:36
User: sputnick
Functions: echo grep
1

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

Know a better way?

If you can do better, submit your command here.

What others think

It's a nice way to detect the HARDWARE word size, but for the kernel, the uname -m is the best option

Comment by bkmeneguello 101 weeks and 5 days ago

Duplicated?

Comment by MarxBro 101 weeks and 2 days ago

@bkmeneguello: Good catch, I stand better informed thanks!

@MarxBro: I have no idea, I searched for it to no avail and didnt bother looking a lot, this is mostly for personal use anyway, sorry if it causes confusion!

Comment by varghjarta 101 weeks and 2 days ago

Your point of view

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