How to list symbolic link chains?
ref: https://serverfault.com/questions/115856/how-to-list-symbolic-link-chains
1$ namei d2f: d3 l d -> c4 l c -> b5 l b -> a6 d a
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ref: https://serverfault.com/questions/115856/how-to-list-symbolic-link-chains
1$ namei d2f: d3 l d -> c4 l c -> b5 l b -> a6 d a