filesizes - prints CSV line for each filepath given - path, size, width, height

filesizes

#!/bin/bash                                                                                                                                                                              
#
# filesizes, v. 20140125
# Author: marji@morpht.com, http://morpht.com
#
# Script which reads filenames from the standard output
# and prints a CSV in form of filepath, size in bytes, image width, image height
# Required package: imagemagick (the identify binary)
# http://www.imagemagick.org/script/identify.php
#
# EXAMPLES
# Output info about all files in a directory:
#  find /srv/www/drupal-7.25/sites/twinkledental.loc/files/ | filesizes
# Info about one file:
#  find pics/my_cat.jpg | filesizes
# Info about all jpg in curent directory and below:
#  find . -iname '*.jpg' | filesizes 2
#
# PARAMETERS
# The first param is what part of the filepath to output the name, default 1 = whole path
#
fromdir=${1:-1}
if [[ ! $fromdir =~ ^[1-9][0-9]*$ ]] ; then
   echo "The parameter must be a positive integer, meaning from which part of the filepath to print the name from."
   exit 1
fi
# read the standard output, line by line, for filepaths:
while read fname
do
  # skip directories in case they were passed:
  if [ -d "$fname" ]; then continue; fi
  # get filesize from the ls command
  size=$(ls -l "$fname" | awk '{ print $5 }')
  # get the dimension, only if the file is a selected image type:
  dim=$(identify -format "%m %w,%h" "$fname" 2>/dev/null | egrep 'ICO |GIF |JPEG |PNG ' | awk '{ print $2 }')

  # Trim the filename path (fromdir is a parameter of this script):
  trimname=$(echo "\"$fname\""  | cut -d/  -f${fromdir}- )

  # output the line - with or (if not an image) without dimensions:
  echo -n "${trimname},${size},"
  if [ ${#dim} -eq 0 ]; then
    echo ','
  else
    echo $dim
  fi  
done