File rename in batch in Unix

Question

Hi I have file in my directory as below:

ewPrd030MmCommonEaiClcBroker034_RSS.ActiveStores_cache.ver
ewPrd030MmCommonEaiClcBroker034_RSS.ActiveStores.Count_cache.dat

I need to rename as below:

ewPpt030MmCommonEaiClcBroker034_RSS.ActiveStores_cache.ver
ewPpt030MmCommonEaiClcBroker034_RSS.ActiveStores.Count_cache.dat

Can you please let me the know a one liner that can do this?

Answer 1

rename can be used for batch renaming files

With your example:

$ rename -v 's/^ewPrd/ewPpt/' *ActiveStores*
ewPrd030MmCommonEaiClcBroker034_RSS.ActiveStores_cache.ver renamed as ewPpt030MmCommonEaiClcBroker034_RSS.ActiveStores_cache.ver
ewPrd030MmCommonEaiClcBroker034_RSS.ActiveStores.Count_cache.dat renamed as ewPpt030MmCommonEaiClcBroker034_RSS.ActiveStores.Count_cache.dat

Answer 2

If you want to rename many files, do something like this:

for f in *Prd*;do mv "$f" "${f/Prd/Ppt}"; done

This will go through all files whose name contains Prd in the current directory and rename them. It takes advantage of bash's (I am assuming you are using bash) string substitution capabilities.