To find the linux kernel version, you should login and type the following command
$ uname -r
Sample output
2.6.18-194.32.1.el5
A second way is to look at the /proc/version file, type the following command
$ cat /proc/version
Sample output
Linux version 2.6.18-194.32.1.el5 ([email protected]) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Wed Jan 5 17:52:25 EST 2011
A third way is to look at the contents of the dmesg command, type the following command
$ dmesg | grep Linux
Sample output
Linux version 2.6.18-194.32.1.el5 ([email protected]) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Wed Jan 5 17:52:25 EST 2011 SELinux: Initializing. SELinux: Starting in permissive mode Linux Plug and Play Support v0.97 (c) Adam Belay SELinux: Registering netfilter hooks Linux agpgart interface v0.101 (c) Dave Jones SELinux: Disabled at runtime. SELinux: Unregistering netfilter hooks
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