exif_photo_org

Organize photos using EXIF info from exiftool

NOTE: currently the files are not copied; a filename is created with touch to simulate what would happen for testing.

Why BASH?

It hurts so good. Also, it's built into many Linux distros. Honestly, I don't really know.

Main file:

• photo_org.sh

Currently I'm running it with this:

find pics \( -iname "*.jpg" -o -iname "*.heic" -o -iname "*.png" -o -iname "*.jpeg" \) -exec ./photo_org.sh pics3 "{}" \; | tee log2

Function files:

• everything else

Goal

Copy all photo files from one unorganized directory tree of files into an organized tree of files with standard names using EXIF info.

Implementation

Organization

Files are organized by year and month according to the EXIF information in this order:

1. CreateDate
2. ModifyDate
3. DateCreated
4. FileModifyDate
5. or the file is not copied

Naming

Files are named D_M_N_Q_S.ext where

• D = yyyy_mm_dd_hh_MM_ss_
• M = model
• N = EXIF FileNumber
• Q = EXIF SequenceNumber
• ext = original file extension

Model

Model comes from:

1. "thumbnail" if the filename contains "thumbnail"
2. "preview" if the filename contains "preview"
3. first word of EXIF Software, e.g. Picasa
4. first 2 words of LensModel, e.g. iPhone 5s
5. filename keywords:
   1. webcam -> webcam
   2. iphone -> iPhone
   3. scan -> scanned
   4. z2 -> dImage_Z2
   5. argus -> argus
   6. /micro/ -> USB_microscope
   7. smugmug -> smugmug
   8. screen shot -> screenshot
6. "webcam" if the EXIF Comment contains "webcam"

Notes to myself on BASH:

• wrap params to functions in double quotes
  • or capture all possible params in the function with $@ / $*
• lowercase vars with ${var,,}
• uppercase vars with ${var^^}
• turn params into var references declare -n var=$1
• pipes are run in subshells, so piping to readarray assigns to a var in a subshell
• replace var chars with ${var/x/y}
• get substrings or array slices with ${var:x} or ${var:x:y}
  • can use a var for x or y, e.g. ${var:${var2}:${var3}}
• match in if [[ ... ]] with =~
  • note that quotes are not required
  • use a var for wonky stuff