Organize files with date name format into subfolders

move-rename.sh

# Handy script to help move images created with a phone camera into date-based folders
# Accepts files in the format yyyymmddhhjjss.*
# creates subdirectories yyyy-mm-dd
# moves files into subdirectories renames them to yyyy-mm-dd-hh-jj-ss.* (extension is preserved)
# Tested against Bash v3.2.57, the expressions are overly verbose as the compact expressions
# do not produce the same results, in this environment
if [[ $(ls | grep -E "[0-9]{8}_.*") ]]; then
  for name in [0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]_*.*; do
    echo "$name"
    new_dir=$(echo $name | sed -e 's/\([0-9][0-9][0-9][0-9]\)\([0-9][0-9]\)\([0-9][0-9]\)_\(.*\)/\1-\2-\3/g')
    new_name=$(echo $name | sed -e 's/\([0-9][0-9][0-9][0-9]\)\([0-9][0-9]\)\([0-9][0-9]\)_\([0-9][0-9]\)\([0-9][0-9]\)\([0-9][0-9]\)/\1-\2-\3-\4-\5-\6/g')
    echo "new dir $new_dir"
    echo "new name $new_name"
    mkdir -p "$new_dir"
    mv -v "$name" "$new_dir/$new_name"
  done
else 
  echo "No files in this directory match the expected pattern, no action taken."
fi