Write an unix shell script that does the following: o creates a directory, projectfiles creates 3 additional directories (as subdirectories of projectfiles): source, data, and results. submit a single text file containing your shell commands

mkdir -p /path/{projectFiles/{source, data, results}}

Explanation:

mkdir is the command for creating directory in unix shell-p is used for creating several subdirectories at the same time/path/ after, the path is given for the directory projectFiles{projectFiles/{source, data, results}} is followed after the path as the directory and subdirectories to be created in curly brackets.  

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