filedate2exiforiginal.sh

#!/bin/bash
# DESCRIPTION: Take filename in format "ccyy-mm-dd hh-mm-ss*" and use this to populate the exif Date/Time Original field
# USAGE: ./filedate2exiforiginal.sh file1, file2, etc. Can use bash file globbing
# FUTURE IMPROVEMENTS:  1. check if date-time-original field already populated and optionally skip or overwrite
#			2. sed command can be much more elegant have used the hammer method here :) 

if [ $# -eq 0 ]
   then
      cat << _EOF_

USAGE: $0 file1 file2 ..., or
       $0 *.jpg, or
       $0 dir/*.jpg
       ...

_EOF_
      exit
fi


while [ "$1" != "" ]; do

	# Skip directories
	if [ -d "$1" ]; then
			shift
			continue
	fi

		#Improvement here: if exif:datetimeoriginal is already set, ask if want to change it?
		
			VERSION="${1}" #get filename
#		echo "-------------" + $VERSION
			VERSIONTIME="${VERSION//[!0-9]/}" # remove non-digit characters
#		echo $VERSIONTIME
			VERSIONTOUCH="${VERSIONTIME:0:14}" # return only the first 14 digits
#		echo $VERSIONTOUCH
 
		VERSIONTOUCHSED=`echo $VERSIONTOUCH | sed 's/^\(.\{4\}\)/\1:/'`
		VERSIONTOUCHSED1=`echo $VERSIONTOUCHSED | sed 's/^\(.\{7\}\)/\1:/'`
		VERSIONTOUCHSED2=`echo $VERSIONTOUCHSED1 | sed 's/^\(.\{10\}\)/\1 /'`
		VERSIONTOUCHSED3=`echo $VERSIONTOUCHSED2 | sed 's/^\(.\{13\}\)/\1:/'`
		VERSIONTOUCHSED4=`echo $VERSIONTOUCHSED3 | sed 's/^\(.\{16\}\)/\1:/'`

		#  so we can use exiftool with proper format for date "ccyy:mm:dd hh:mm:ss"
# 		echo "VERSIONTOUCHSED4" "${VERSIONTOUCHSED4}"

			exiftool -common "${1}"
			exiftool -DateTimeOriginal="${VERSIONTOUCHSED4}" "${1}"
			exiftool -common "${1}"

		shift
	done
	
exit 0