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The following commands gives the output like this #cat file1 file2#cat: file1: No such file or directory helloIf we execute the command “cat file1 file2 1>2 2>&1” the output would be

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The architecture of an operating system is basically the design of its software and hardware components. The core software components of an operating system are collectively known as the kernel.  For example, The architecture of the Linux operating system consists of the Kernel, system library, system, hardware layer, and shell utility. 

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The following commands gives the output like this #cat file1 file2<br>#cat: file1: No such file or directory hello<br>If we execute the command “cat file1 file2 1>2 2>&1” the output would be






 
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