how to remove all files except few directories

[amlife]

Hello

I have directory which has many files and sub directories

similar to what this command will do

mkdir dir{1..100} && touch file{1..100}.txt

I would like to remove all files and directories excluding file15.txt and dir 79

Thank you

[amlife]

I found the answer for this question

you need to run this command first

shopt -s extglob

then delete all files except the files between brackets

rm !(file1|dir|)