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These nodes all have stuff by aca (showing 1-3 out of ~3?):

Node ID Writeup Created
1154803 Re^2: How to cut the directory path? 2016-02-10 07:20
1154801 How to cut the directory path? 2016-02-10 06:56
1154596 what is this error means Use of uninitialized value $. in concatenation (.) or string 2016-02-07 09:35