Determine whether a CPU has 64 bit capability or not

sudo dmidecode --type=processor | grep -i -A 1 charac

Sample Output

-bash-3.2$ sudo dmidecode --type=processor | grep -i -A 1 charac 
Characteristics:
64-bit capable
--
Characteristics:
64-bit capable

This tells us that the CPU is 64 bit.

3

By: bzaman

2010-04-09 11:12:27

grep sudo dmidecode

4

1 Alternatives + Submit Alt

Determine whether a CPU has 64 bit capability or not

Check if you have 64bit by looking for "lm" in cpuinfo. lm stands for "long mem". This can also be used without being root.
This is sample output - yours may be different.
4

if cat /proc/cpuinfo | grep " lm " &> /dev/null; then echo "Got 64bit" ; fi

xeor · 2010-04-10 15:31:58 7

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yeneba6574 · 13 weeks and 4 days ago

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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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