jpeg_extract --version (return code: 0)
0.6.21
jpeg_extract --help (return code: 0)
Usage--exif-[OPTION...]-file
---v,---version-------------------Display-software-version
---i,---ids-----------------------Show-IDs-instead-of-tag-names
---t,---tag=tag-------------------Select-tag
--------ifd=IFD-------------------Select-IFD
---l,---list-tags-----------------List-all-EXIF-tags
---|,---show-mnote----------------Show-contents-of-tag-MakerNote
--------remove--------------------Remove-tag-or-ifd
---s,---show-description----------Show-description-of-tag
---e,---extract-thumbnail---------Extract-thumbnail
---r,---remove-thumbnail----------Remove-thumbnail
---n,---insert-thumbnail=FILE-----Insert-FILE-as-thumbnail
--------no-fixup------------------Do-not-fix-existing-tags-in-files
---o,---output=FILE---------------Write-data-to-FILE
--------set-value=STRING----------Value-of-tag
---c,---create-exif---------------Create-EXIF-data-if-not-existing
---m,---machine-readable----------Output-in-a-machine-readable--tab-delimited-
----------------------------------format
---w,---width=WIDTH---------------Width-of-output
---x,---xml-output----------------Output-in-a-XML-format
---d,---debug---------------------Show-debugging-messages
Help-options-
---?,---help----------------------Show-this-help-message
--------usage---------------------Display-brief-usage-message