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Print certain system information.  With no OPTION, same as -s.


-a, --all

print all information in the following order, except omit -p and -i if unknown:

-s, --kernel-name

print the kernel name

-n, --nodename

print the network node hostname

-r, --kernel-release

print the kernel release

-v, --kernel-version

print the kernel version

-m, --machine

print the machine hardware name

-p, --processor

print the processor type or "unknown"

-i, --hardware-platform

print the hardware platform or "unknown"

-o, --operating-system

print the operating system


display this help and exit


output version information and exit