Bruno Raljić

A Java Developer's Blog


How to rename a large number of files using Java

Use case Imagine you have about 20 folders and each folder has 50 – 100 pdf documents in it. Pdf file names have similar structure, let’s say year-month-user_id.pdf e.g. 2012-oct-396.pdf. If, for some reason, user_id has changed, perhaps after a db migration, you’ll need to edit the names of all pdf files in order to make […]

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