Find all nginx log files from no extension up to .14.gz
# find . -regex '.*/https_www_access.log\(\.1\|\.[0-9]\.gz\|\.1[0-4]\.gz\)?$' -exec ls {} \;
./https_www_access.log.1
./https_www_access.log.5.gz
./https_www_access.log.14.gz
./https_www_access.log.2.gz
./https_www_access.log.7.gz
./https_www_access.log
./https_www_access.log.10.gz
./https_www_access.log.8.gz
./https_www_access.log.12.gz
./https_www_access.log.6.gz
./https_www_access.log.9.gz
./https_www_access.log.13.gz
./https_www_access.log.11.gz
./https_www_access.log.4.gz
./https_www_access.log.3.gz