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Linux Find Out CPU Architecture Information

How do I find out my CPU architecture information under Linux operating systems?
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tsort: UNIX / Linux Perform Topological Sort

Q. How do I perform topological sort or topological ordering without writing code in C or other programming language? How do I performs a topological sort on the given FILE using a shell script?
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OpenVZ Virtual Machine (VPS) Management

Now, my VPS is up and running. How do I manage my hardware node and VPS? How do I see a list of all running VPSes? How do I see memory usage and other stuff?
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