Check Linux/Unix Operating System Version,Maintenance Level,Architecure

We can identify the Unix Operating System architecture by uname or arch command. Try below examples.

Linux

Linux kernel version and hardware architecture:
# uname -m
i686
# arch
i686


Here,
x86_64  : 64-bit architecture
i686   : 32-bit architecture.

Display distribution details and kernel version
# lsb_release -idr
Distributor ID: RedHatEnterpriseServer
Description:    Red Hat Enterprise Linux Server release 5.7 (Tikanga)
Release:        5.7

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