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Recursively displays all the files/folders in a tree like format.
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With no flags, displays the contents of current directory
-i : lists all the files and folders in the path specified by the user in tree format
-u : lists the username and group id of a folder
-help : displays the help section
-v : displays the version of the tree
-cf : shows all the files and folders in the path specified by the user which are of compressed type for eg-.zip,rar etc.
-pf : shows all the files and folders in the path specified by the user which are of program type for eg-.c,.o,.js etc.
-d : shows only the sub directories in tree format.