No attempt is made to ensure that the contents of FILE are in a valid thumbnail format. n, -insert-thumbnail=FILE Insert FILE as thumbnail.
r, -remove-thumbnail Remove the thumbnail from the image, writing the new image to the file specified with -output. e, -extract-thumbnail Extract the thumbnail, writing the thumbnail image to the file specified with -output. s, -show-description Show description of tag. remove Remove the tag or (if no tag is specified) the entire IFD. The contents of this tag are nonstandard (and often undocumented) and may therefore not be recognized, or if they are recognized they may not neces‐ sarily be interpreted correctly. |, -show-mnote Show the contents of the MakerNote tag. A JPEG image must be pro‐ vided, and those tags which appear in the file are shown with an asterisk in the corresponding position in the list. l, -list-tags List all known EXIF tags and IFDs. Valid IFDs are "0", "1", "EXIF", "GPS", and "Interoperability". ifd=IFD Select a tag or tags from this IFD. The tag title is dependent on the current locale, whereas name and number are locale-inde‐ pendent. TAG is the tag title, the short tag name, or the tag number (hexadecimal numbers are prefixed with 0x), from the IFD specified with -ifd. i, -ids Show ID numbers instead of tag names.
OPTIONS -v, -version Display the exif version number. Corrupted MakerNote tags are also removed, but no format changes are made. As EXIF tags are read, any unknown ones are discarded and known ones are automatically converted into the correct format, if they aren't already. Execution will be aborted immediately if one file is not readable or does not contain EXIF tags.
Each input file given on the command line is acted upon in turn, using all the options given. exif internally uses the libexif library. The exif command- line utility allows you to read EXIF information from and write EXIF information to those files. Most digital cameras produce EXIF files, which are JPEG files with extra tags that contain information about the image. Code: $ man exif | col -b > /tmp/exif.manĮxif(1) command line front-end to libexif exif(1) NAME exif - shows EXIF information in JPEG files SYNOPSIS exif DESCRIPTION exif is a small command-line utility to show and change EXIF informa‐ tion in JPEG files.
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