Chris Siebenmann@irenes @glyph @mcc @b0rk The kernel tracks the current working directory as an internal object reference, but Linux usually has a name for it. Shells often separately track a name for it (often visible as $PWD), and sometimes perform operations like 'cd ..' by manipulating the name. So if /u/cks is a symbolic link to /h/281/cks and you do 'cd /u/cks', such a shell may implement 'cd ..' so you wind up in /u, instead of /h/281. For many people this better matches their expectations.
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