How to write a bash script to compare and select filenames containing a number in the name?

Question

bash

I'm looking for information or ready-made solutions.
Supposedly there are several files (one, two or more) named:

• core-v43.jar
  
• core-v44.jar
  
• core-v93.jar
  

You need to enter the name of the file with the largest number in a variable, and delete the rest of the files. If I'm lucky, I hope to find some information for the cmd/bat implementation as well.

Answer 1

VARIABLE=$(ls -v1 *.jar |tail -n1)
find . -name "*.jar" ! -name "$VARIABLE" -delete

Answer 2

Since the default sorting of ls suits us, we can shorten it.
sort -n - must be used when there are files like 0001 - normal files are here and they will be sorted as expected.

find . -name "*.jar" ! -name "$(ls -1 *.jar | head -n1)"  -delete

If the option is sorted by creation date, then here you can make it even shorter.