The first way is uname -a, as shown below:
The second way is through cat /etc/redhat -release command to view system information
(Recommended tutorial: centos usage tutorial)
The third way is through cat / Use the proc/version command to view system information
If you want to check whether the system is 64-bit or 32-bit, you can use the getconf LONG_BIT and file /bin/ls commands to check
Related video tutorial recommendations: linux video tutorial
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