UNIX rename with Regex to remove middle string from file names

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I think you expect rename -> prename as is the case on Debian. Another one with prename:
prename -n 's/^(CMRLPCR\d{6})_[^_]*/$1/' *.bum

prename -n 's/_[^_]*//' CMRLPCR??????_*.bum

The rename from util-linux is much different, and IMHO cannot have references like $1 $2 that refer to (group1) (group2).
The only portable solution is a loop.

Last edited by MadeInGermany; 02-18-2020 at 01:20 PM..
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