linux | bash - check cpu architecture

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arch


# Example output 1 (AMD Ryzen 5900x):
#
#     x86_64


# Example output 2 (Raspberry PI 5):
#
#     aarch64

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uname -m


# Example output 1 (AMD Ryzen 5900x):
#
#     x86_64


# Example output 2 (Raspberry PI 5):
#
#     aarch64