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I have a machine on my network that I can only access through ssh, and I want to see if it'll support a 64-bit OS (currently running linux, but I don't know which). Any ideas how to accomplish this through terminal command/s? thanks.

  • How many duplicates of this question do we need, really? – womble Jan 4 '10 at 0:49
7

cat /proc/cpuinfo

look for the 'lm' flag, it means 'long-mode' i.e. 64-bit capable.

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8

If you want to see the "bitnes" of the OS installed you can run this command.

$ uname -m

Regarding the actual capabilities of the processor you can always look the model up inside /proc.

$ cat /proc/cpuinfo

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1

egrep '(vmx|svm)' --color=always /proc/cpuinfo

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