Ten essential commands for Linux tasks

"7. Dmesg
Call me old-school, but whenever I plug a device into a Linux machine, the first thing I do is run the dmesg command. This command displays the messages from the kernel buffer.

"This is important. There is a lot of information to be garnered from the dmesg command. You can find out information about the system architecture, GPU, network device, kernel-boot options used and RAM totals, for example.

"8. Kill, killall
One of the greatest benefits of Linux is its stability. But that stability does not always apply to applications outside the kernel. Some applications can lock up, and when they do, you want to be able to remove them. The quickest way to get rid of locked up applications is with the kill or killall commands."

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