Test for a Missing Tag

[Archive]

[Originally posted by andrewj on 2008-03-17 20:53:59-07]

Hi, what's the best way to test for a completely missing exif tag value from the command line? I'm trying to build a command which will copy all the exif data from a source file if key items are missing. I've tried a couple of variants of the following but without success:

exiftool -k -if "$exifversion !=~//" -tagsfromfile SourceFile -exif:all JPGFile

Thanks
Andrew

[Archive]

[Originally posted by exiftool on 2008-03-17 22:04:51-07]

hi Andrew,

Try -if "not defined $exifversion"

-Phil