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1. Check the current operating system kernel information
uname -a
2. Check the current operating system version information
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cat /proc/version
3. View the current operating system release version information
cat /etc/issue cat /etc/redhat-release
4. List all version information
lsb_release -a
If command not found
appears, it means that lsb_realease is not installed. You can execute the command yum install -y redhat-lsb installs lsb_realease. After the installation is completed, the version information is as follows:
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