#!/bin/bash

file_name_regex="cips_raa_2b_orbit_75[0-9]{3}_2021-028_v01.10_r05(_[ca][al][tb])?\..+"

filenames=`ls ./*`
for file in $filenames; do
  if [[ $file =~ $file_name_regex ]]; then
    echo $file
    if [[ $file =~ gz ]]; then
      cp -pv $file "${file/.nc.gz/_prelim.nc.gz}"
    fi
    if [[ $file =~ png ]]; then
      cp -pv $file "${file/_r05/_r05_prelim}"
    fi
  fi
done