update-exif-date

#!/bin/bash
#=======================================================================================================================
# Description
#   Script to update EXIF date of JPEG files based on their names. Files must have extension '.jpg' or '.JPG', and
#   their names must start with date in format 'yyyy-mm-dd'.
# Arguments
#   $1 Directory with JPEG files. Mandatory.
# Prerequisites
#   Requires jhead
#=======================================================================================================================

. "$(dirname "$(realpath "$0")")/common.sh"

# Setup vars
dir_source=$1
USAGE_INFO="Usage: $0 <jpeg_directory>"

# Check the parameters
[[ -z "$dir_source" ]] && usage "No source directory specified"
[[ -d "$dir_source" ]] || err "Directory $dir_source does not exist."

find "$dir_source" -type f -iname '*.jpg' -print |
    while read pic_file; do
        file_name=$(basename "$pic_file")
        file_date=$(echo ${file_name:0:10} | tr '-' ':')
        log "$file_name: setting date to $file_date"
        jhead -q -ds$file_date -mkexif "$pic_file"
    done