Create directories "school" and its "(year1,year2,year3 )" and subdivided into 3 sections, in one single Linux command and execute in TREE.

step 1

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update yum by command -> Yum update

step 2

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install tree from repository -> yum install tree

step 3

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make directories by one command

mkdir -p School/{Year1,Year2,Year3}/{SectionA,SectionB,SectionC}

step 4

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Execute command -> tree School

THE RESULT LL BE

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