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linux system

Linux: Find Number of CPU Cores Command

How do I find out the number of CPU cores available under HP x86_64 Linux serer running on RHEL / Debian Linux 6.x?
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Linux / Unix: Cat Command Examples

cat command

I am a new Linux and Unix system user. How do I use cat command on Linux or Unix-like operating systems? Can you provide basic examples and syntax usage for cat command?
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How do I shutdown remote Linux or UNIX system from MS-Windows system?
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Linux: What is Dash ( /bin/dash ) Shell?

What is /bin/dash? I noticed that the default system shell /bin/sh was changed to /bin/dash. Why was this change made?
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Ubuntu Linux Stop a Process

How do I stop a process under Ubuntu Linux using command line and GUI tools?
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I want to add more RAM to my server running Ubuntu Linux. How do I find out my current RAM chip information such as its speed, type and manufacturer name within a Linux system without opening the case?
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Linux Change Password

How do I change my own password as well as the passwords of other users as required under Linux operating system without using GUI systems? How can I change or set user password on Linux operating systems?
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