To identify the type of Unix or Linux system we are using run:

$ uname -a

Linux Example:

[root@redhat9-01 ~]# uname -a
Linux redhat9-01 5.14.0-284.30.1.el9_2.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Aug 25 09:13:12 EDT 2023 x86_64 x86_64 x86_64 GNU/Linux
[root@redhat9-01 ~]#

AIX Example:

# uname -a

AIX crnimx01 1 7 000482ADD600

#