Adding CoverArt to a mp4 file

[js]

when i try to add it i run:
exiftool -CoverArt<=cover.jpg moviefile.mp4
bash: =cover.jpg: No such file or directory

according to the documentation this should work:
    -TAG[+-]<=DATFILE                Write tag value from contents of file

it obviously does not, at least on my Linux OS here. How does it work?

[Phil Harvey]

You need quotes around any argument with a "<" symbol because this is used in the shell for redirection (bash in your case, according to the error message).  So try this:

exiftool "-CoverArt<=cover.jpg" moviefile.mp4

according to the documentation this should work:
    -TAG[+-]<=DATFILE                Write tag value from contents of file

it obviously does not, at least on my Linux OS here. How does it work?

Not so obvious, was it? 

- Phil

[StarGeek]

And being the jerk that I am, from the docs on the -TAG<=DATFILE option

Note that quotes are required around this argument to prevent shell redirection since it contains a < symbol.

[Phil Harvey]

(whoever wrote that documentation was very thorough)

(but you may be the only one who has read it all)