What we care about:

Mandatory

• xmp:Title EG Cape Town Trip 2020
• xmp:Date
• xmp:CreateDate
• xmp:DateTimeCreated
• xmp:DateTimeOriginal
• xmp-dc:creator=Simon Tennant
• xmp-iptccore:creatorworkurl=http://imaginator.com
• xmp-iptccore:creatorworkemail=simon@imaginator.com
• xmp-dc:rights=Copyright © $DateTimeOriginal Simon Tennant, all rights reserved.

Optional:

• xmp:Description: Rarely used but the option to annotate a photo
• lat/long (where the photo was taken
• face data see: https://github.com/exiftool/exiftool/blob/master/arg_files/exif2xmp.args

based on https://github.com/kaytat/exiftool-scripts-for-takeout

cd Downloads
tar xfzv takeout-20221208T113828Z-001.tgz
tar xfzv takeout-20221208T113828Z-002.tgz
...

# now is a good time to remove everything other than 
# "Photos from <year>"
# since albums (subdirectories) are a duplicate of the timeline

# apply google JSON to files
exiftool -@ use_json.argfile ~/Downloads/Takeout

# but some don't have an accompanying JSON file so we have to pull from filenames
exiftool -@ filename_to_date.argfile ~/Downloads/Takeout

# apply copyright text (depends on DateTimeOriginal having been set)
exiftool -@ file_copyright.argfile ~/Downloads/Takeout 

# move files into year/month hierachy
exiftool -@ sort_by_year_month.argfile ~/Downloads/Takeout

# check non-moved files (probably corrupt)
rsync -av  ~/Downloads/simon_photos simon@bunker.imagilan:/srv/photos/originals/new-google-takeout


### tag names
My one other piece of advice is to not worry about the group namespace, such as XMP-photoshop, XMP-dc, XMP-iptcCore, etc.  Just keep it simple, like XMP:TAGNAME and let exiftool figure out the proper place to put it.

### Perfect files should pass the following tests:

exiftool -r -p '$directory/$filename' -if '(not $xmp:title)' /srv/photos/originals exiftool -r -p '$directory/$filename' -if '(not $xmp:datetimeoriginal)' /srv/photos/originals

## Validate files

start with the real fuckups:

exiftool -r -p '$directory/$filename' -if '(not $exif:all)' -ext jpg /srv/photos/originals exiftool -r -p '$directory/$filename' -if '(not $datetimeoriginal)'-ext jpg /srv/photos/originals

fixing timestamps

# remove all IPTC-IIM tags
exiftool -r  -overwrite_original   -p '$directory/$filename' -if '$IPTCDigest'  -IPTCDigest=     /srv/photos/originals     



fixing copyright:

exiftool -P -OwnerName='Simon Tennant' -XMP-dc:Creator='Simon Tennant' -XMP-iptcCore:CreatorWorkURL='http://imaginator.com' -XMP-iptcCore:CreatorWorkEmail='simon@imaginator.com' -d %Y -XMP-dc:Rights'<Copyright © $createdate Simon Tennant, all rights reserved.' /srv/photos/originals/

exiftool -r -overwrite_original -p '$directory/$filename' -if '$IPTCDigest' '-IPTCDigest=' /srv/photos/originals


Files missing XMP data area

exiftool -r -p '$directory/$filename' -if 'not $xmp:all' /srv/photos/originals exiftool -r -overwrite_original -p '$directory/$filename' -if 'not $xmp:all' '-all>xmp:all' /srv/photos/originals

Sometimes DateTimeDigitized disagrees

exiftool -r -if '$DateTimeOriginal !~ $DateTimeDigitized' -p '$createdate $DateTimeDigitized $directory/$filename' /srv/photos/originals/ exiftool -r -overwrite_original -p '$directory/$filename' -if '$DateTimeOriginal !~ $DateTimeDigitized' '-alldates<datetimeoriginal' '-XMP:alldates<datetimeoriginal' /srv/photos/originals/1999 for videos this can be useful exiftool -r -overwrite_original -p '$directory/$filename' -if '$DateTimeOriginal !~ $DateTimeDigitized' '-alldates<xmp:datecreated' '-XMP:alldates<xmp:datecreated' '-xmp:HistoryWhen=' '-xmp:DateTimeDigitized<xmp:datecreated' /srv/photos/originals/

Find missing Subject
exiftool -r -if '(not $Title)' -p '$directory/$filename' -ext jpg /srv/photos/originals
Fix Videos missing their Title:
exiftool -r "-title<${directory;s(.*/)()}" DIR



Exiftool write current file name to Title and Comment EXIF fields:

exiftool -r -overwrite_original "-xpcomment<${filename" "-comment<${filename" "-title<${filename" "-xptitle<${filename" .


# useful for fixing video files:
exiftool -r -v -overwrite_original  '-datetimeoriginal<${filename;$_=substr($_,0,15)}' '-createdate<${filename;$_=substr($_,0,15)}' '-FileCreateDate<${filename;$_=substr($_,0,15)}' '-FileModifyDate<${filename;$_=substr($_,0,15)}' '-MetaDataDate<${filename;$_=substr($_,0,15)}' '-ModifyDate<${filename;$_=substr($_,0,15)}' '-XMP:alldates<${filename;$_=substr($_,0,15)}' -ext jpg  /srv/photos/originals/2002/2002\ 12\ 28\ Dec\ 2012/2012-12-25\ 07\ 52\ 34-1.jpg 

exiftool -r -if 'not $Iptc:Caption-Abstract' -p 'ImageDescription missing in $directory/$filename' /srv/photos/originals/1999

exiftool -G0:1 -time:all /srv/photos/originals/1998/1998\ 12\ 2005\ 07\ 02\ London\ with\ Ulrika/DSCN0271.jpg

exiftool '-xmp-microsoft:all=' exiftool '-xmp-video:all='

exiftool -S /srv/photos/originals/2002/2002\ 03\ 2002\ 04\ Avrils\ Visit/DCP_6664.jpg

exiftool -p '$directory/$filename' -r -if '$DateTimeOriginal !~ $DateTimeDigitized' /srv/photos/originals/

exiftool -r -overwrite_original -makernotes:all= /srv/photos/originals/1999

exiftool -p "$directory/$filename" -r -if "(not $createdate)" .

#Exiftool find all photos Without "datetimeoriginal" EXIF tag: exiftool -p "$directory/$filename" -r -if "(not $datetimeoriginal)" .

Exiftool add CreateDate Exif Property and Copy DateTimeOriginal Exif Property Value into It

Useful for if many pictures do not have the CreateDate exif-property, but do have the DateTimeOriginal exif-property. If you want the CreateDate exif-property to have the same value as the DateTimeOriginal exif property:

exiftool -r -overwrite_original -if '(not $createdate and $datetimeoriginal)' '-createdate<datetimeoriginal'

Move to the right directory

# will overwrite existing files with the same name (not really an issue so far) 
exiftool  -r  -o dummy/  '-filename<CreateDate' -d '/srv/photos/originals/simon_photos/%Y/%m/%%f.%%e' /srv/photos/originals/inbox  > out 2>error