This is the command line: exiftool file.jpg -@ ARG_FILE the ARG_FILE looks like this: -keywords=this is the test1 -keywords=six.point.three test2 -keywords=test3 -keywords=test32, $lensid -d %Y -copyright'<Copyright $createdate, Patrick J. Finerty, Jr.' -xmp:city=Toronto -xmp:location=hell on earth -xmp:country=Canada -xmp:reuseallowed=No I've tried various incarnations of this file but the only way I can get the LensID copied to the ke +ywords tag is by specifying it this way in the ARG_FILE -keywords<$lensid Unfortunately, this erases all of my other keywords. Any suggestions? I'm just want to append the L +ensID and Model tags to the keywords while keeping the other keywords as well. Is this possible us +ing the -TagsFromFile feature (that is implicit in the above)? Also, the copyright statement is not being added with this method either but that syntax works fine + on the command line