Hello.
Please pardon this simple question, but I am wondering if I can define a simple custom variable that holds a string.
For context, I sometimes run a command that adds timezone info to some xmp tags. If goes something like this.
exiftool -datecreated<${createdate}-07:00 -datetimeoriginal<${createdate}-07:00
There are actually 3 or 4 of these, so when I change the timezone info, I have to alter each part of the command individually. I would like to set the first 3 characters of the time zone as a custom variable then have the commands reference it. Something like
exiftool -mycustomstring="-06" -datecreated<${createdate}${mycustomstring}:00 -datetimeoriginal<${createdate}${mycustomstring}:00....etc for the other 3 or 4 of these that I do at once.
Thank you
I'd suggest adding a shortcut to your .ExifTool_config file.
For your example tags, your shortcut would be something like
MyXMPDates => ['XMP:DateCreated','XMP:DateTimeOriginal'],
You would add this to the shortcut section of your config file. If you don't already have a shortcut section, the entire thing would be
%Image::ExifTool::UserDefined::Shortcuts = (
MyXMPDates => ['XMP:DateCreated','XMP:DateTimeOriginal'],
);
Then your command to write to all the tags at once would be
exiftool "-MyXMPDates<${createdate}-07:00" /path/to/files/
See the example.config file (https://exiftool.org/config.html) for further details