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I would like to download and install (compile) gnu tree on linux machine with no root access, but Googling GNU tree doesn't even give me a page where to download it to. Anyone?

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Here is the official website and the latest sources: http://mama.indstate.edu/users/ice/tree/

Rather than compiling tree you may want to have a look at this one-liner in shellscript:

ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/   /' -e 's/-/|/'

Not as clean as tree but good enough for the majority of cases !

For another implementation of tree in bash the guy made a good script here: http://mama.indstate.edu/users/ice/bash/btree

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The problems with such one-liners are, as you have noted yourself, that 1) they are not as clean as tree and 2) they are only "good enough" for the "majority". – grawity Feb 15 '12 at 10:36
A machine without root access is "good enough" too for the majority, we are not talking about an edge case here but a specific one. Moreover when you are down to compiling your tools on a machine you're not root on you may be interested in quicker solution as a bash script ; installing a compiler and resolving dependencies isn't that fun just to display a tree representation of some folders. – Shadok Feb 15 '12 at 14:00

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