exiv2
Image metadata manipulation tool.
TLDR
Print a summary of the image Exif metadata
$ exiv2 [path/to/file]
Print all metadata (Exif, IPTC, XMP) with interpreted values
$ exiv2 -P kt [path/to/file]
Print all metadata with raw values
$ exiv2 -P kv [path/to/file]
Delete all metadata from an image
$ exiv2 -d a [path/to/file]
Delete all metadata, preserving the file timestamp
$ exiv2 -d a -k [path/to/file]
Rename the file, prepending the date and time from metadata (not from the file timestamp)
$ exiv2 -r ['%Y%m%d_%H%M%S_:basename:'] [path/to/file]