This works by copying the value of the XMP Date tag to the special FileName tag with the < operator. Rename all files in the current directory based on their XMP date. Increment the EXIF date/time of all files in the current directory by six hours. $ exiftool -if '$Make eq 'Jolla'' -FileName -T. $ exiftool -if '$XMP-dc:Description =~ /(Laura|Martin)/' -FileName -T. You can use pattern matching with regular expressions or any other kind of Perl logic expression. List all files in the current directory which contain the strings ‘Laura’ or ‘Martin’ in their XMP Description tag, or all files that were made with a specific camera model. Set the XMP Creator and Rights tags of all files in the current directory to the same value with one single command.

Here is a random collection of handy commands.

But when it comes to working with lots of files en masse, like shifting the date of all images in a directory by two hours, nothing beats the command line.

When editing metadata of single image files I usually use my graphical metadata editor Verso.

Exiftool list all tags