Add EXIF data about camera stuff to a JPG destructively using exiftool and ImageMagick

labelimg.sh

#!/bin/bash

if [ $# -lt 1 ] ; then
    echo "WARNING: Will overwrite source image!"
    echo "$0 [images]"
    exit
fi

for IMAGE in "$@"; do
	LENS=`exiftool -T -lens $1`
	CREATEDATE=`exiftool -T -createdate $1`
	FOCALLEN=`exiftool -T -focallength $1`
	APERTURE=`exiftool -T -aperture $1`
	SHUTTERSPEED=`exiftool -T -shutterspeed $1`
	ISO=`exiftool -T -iso $1`
	MODEL=`exiftool -T -model $1`
	DATE=`echo $CREATEDATE | cut -d" " -f1 | sed 's/:/\//g'`
	TIME=`echo $CREATEDATE | cut -d" " -f2`
	
	LABEL=`echo $DATE $TIME $MODEL, $LENS - ISO $ISO  $FOCALLEN  f/$APERTURE  $SHUTTERSPEED \(c\) Joshua Wright, All Rights Reserved`
	convert $IMAGE -pointsize 80 -fill black -box 'rgba( 215, 215, 215 , 0.5 )' -gravity South -annotate +0+0 "$LABEL" $IMAGE
done

Produces a text box like the example shown here: