convert.sh

#!/bin/bash
#######################################
DEBUG='y'
COPY='n'
# directory with cpanel prefixed backup- files are
BACKUPDIR='/path/to/cpanel/backupdirectory'
#######################################
convert() {
  filename=$1
  # break filename down into 3 parts to manipulate the timestamp into correct format
  # in parta variable
  checkmonth=$(echo $filename | awk -F '_' '{print $1}' | sed -e 's|backup-||' | awk -F '.' '{print $1}')
  if [[ ${#checkmonth} < 2 ]]; then
    parta=$(echo $filename | awk -F '_' '{print $1}' | sed -e 's|backup-||' | awk -F '.' '{print "_temp_"$3"0"$1$2}')
  else
    parta=$(echo $filename | awk -F '_' '{print $1}' | sed -e 's|backup-||' | awk -F '.' '{print "_temp_"$3$1$2}')
  fi
  partb=$(echo $filename | awk -F '_' '{print $2}')
  partc=$(echo $filename | awk -F '_' '{print $3}')
  if [[ "$DEBUG" = [Yy] ]]; then
    # debug mode just outputs the 3 divided parts to make sure it
    # is correct output
    echo "-------------------------------"
    echo "debug mode output: "
    echo "$parta"
    echo "$partb"
    echo "$partc"
    echo "-------------------------------"
    echo
  fi
  # piece together the parts required for the new filename
  newfilename="${parta}${partc}"
  echo "renaming $1 to $newfilename ..."
  if [[ "$DEBUG" = [Yy] ]]; then
    # in debug mode you can either output via echo just the new filename
    # and old file name when COPY='n' set or if COPY='y' set you can test
    # copy rename of file to newfilename
    # otherwise if debug mode is disabled DEBUG='n', it does live rename
    # of file name with prefix = backup- in directory you define at BACKUPDIR
    # variable above
    echo "-------------------------------"
    if [[ "$COPY" = [Yy] ]]; then
      echo "debug mode output (copy instead of rename): "
      echo "\cp -fa "${BACKUPDIR}/${1}" "${BACKUPDIR}/${newfilename}""
      \cp -fa "${BACKUPDIR}/${1}" "${BACKUPDIR}/${newfilename}"
    else
      echo "debug mode output (echo only): "
      echo "original file: ${BACKUPDIR}/${1}"
      echo "renamed file: ${BACKUPDIR}/${newfilename}"
    fi
  else
    echo "mv "${BACKUPDIR}/${1}" "${BACKUPDIR}/${newfilename}""
    mv -f "${BACKUPDIR}/${1}" "${BACKUPDIR}/${newfilename}"
  fi
}

list_dirfiles() {
  for f in $(find "$BACKUPDIR" -type f -name 'backup-*' -printf "%f\n"); do
    echo "found $f"
    convert $f
  done
  echo
  ls -lah $BACKUPDIR
}
list_dirfiles