Check if hardware is 32bit or 64bit

grep -q '\<lm\>' /proc/cpuinfo && echo 64 bits || echo 32 bits

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

By: sputnick

2013-02-09 13:01:36

echo grep hardware 32bit 64bit

11 Alternatives + Submit Alt

32 bits or 64 bits?

Easy and direct way to find this out. Show Sample Output
This is sample output - yours may be different.
```
32
```
125

getconf LONG_BIT

caiosba · 2009-08-08 21:22:19 62
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 Show Sample Output
This is sample output - yours may be different.
```
32
```
21

getconf LONG_BIT

varghjarta · 2012-12-12 23:51:51 13
Check if system is 32bit or 64bit
This is sample output - yours may be different.
16

arch

anapsix · 2013-01-02 17:52:14 12
32 bits or 64 bits?
This is sample output - yours may be different.
7

sudo lshw -C cpu|grep width

sliceoflinux · 2009-09-24 11:43:00 6
Check if x86 Solaris based system is 32bit or 64bit

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" Show Sample Output
This is sample output - yours may be different.
```
64-bit amd64 applications
        vmx avx xsave pclmulqdq aes sse4.2 sse4.1 ssse3 popcnt tscp cx16 
        sse3 sse2 sse fxsr mmx cmov amd_sysc cx8 tsc fpu 
32-bit i386 applications
        vmx avx xsave pclmulqdq aes sse4.2 sse4.1 ssse3 popcnt tscp ahf 
        cx16 sse3 sse2 sse fxsr mmx cmov sep cx8 tsc fpu 
```
1

isainfo -v

halcyonblue · 2013-01-04 03:07:28 6

What Others Think

rahimhh21 · 110 weeks and 1 day ago

Perfecthomepugs · 101 weeks ago

pugpuppies95 · 62 weeks and 6 days ago

donperi1 · 55 weeks and 1 day ago

yeneba6574 · 14 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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shows whether your CPU supports 64bit mode

Check if *hardware* is 32bit or 64bit

Determine whether a CPU has 64 bit capability or not

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