Assume the following files are in the working directory:  $ ls    output.txt  notes1  notes2  notestxt  notes3  notes4 output.1  output.2  output.3  output-1b  output-2b Give commands for each of the following, using wildcards to express filenames with as few characters as possible.  a. List all files that begin with output. b. List all files that end in txt. c. List the output. files only.  d. List the output.1, output.3, notes1, and notes3 files.

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Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.