Appending text to existing comment

[neebah]

Is there a way (I'm sure there is) to append text to an already exiting text tag like User Comment while leaving the original text behind. 

[Hayo Baan]

There could be a simpler way, but this would work:

Code Select Expand

exiftool '-tag<${tag; $_ .= " add this text"}' FILE

Replace tag with the tag you want to append the text to and switch the single and double quotes when on Windows.

[Phil Harvey]

@Hayo: No need to use an advanced formatting expression.  This is a bit simpler:

exiftool "-tag<${tag} add new text here" FILE

- Phil

[neebah]

okay and if I wanted to add it to the beginning instead of the end I would do this ?

exiftool "-tag<add new text here ${tag}" FILE

[Phil Harvey]

Yup