Fix image size and dpi recursively

imagefix.sh

#!/bin/bash

find . -type f -name '*.jpg' -print0 | while IFS= read -r -d '' file; do
    report="$(date "+%Y-%m-%d %H:%M:%S")"
    report+=" ($file)"
    
    str="$(identify -format "%w;%h;%x;%y" "$file")"
    arr=(${str//;/ })
    
    w=${arr[0]:-0}
    h=${arr[1]:-0}
    dx=${arr[2]:-0}
    dy=${arr[4]:-0}
    d=0
    if [ $dx == $dy ]; then
        d=$dx
    fi
    
    if [ $d -gt 72 ]; then
        convert="$(convert -units PixelsPerInch "$file" -density 72 "$file")"
        report+=${convert:-\ \-converted}
    fi
    
    if [ $w -gt 1920 ]; then
        resize="$(convert "$file" -resize 1920x "$file")"
        report+=${resize:-\ \-resized}
    fi
    
    echo $report
    echo $report >> ./images.log
done