How to Determine Whether a System Is 64-bit or 32-bit

A trick in Bash

#!/bin/bash
system_bits=`uname -m`
if [[ "$system_bits" == x86_64 ]]
then
echo "It's a 64-bit system"
else
echo "It's a 32-bit system"
fi

Others

• ​​UNIX and Linux System Administration Handbook (4th Edition)​​