Photo file operations
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Change date and time of file by it's name
ls IMG* |while read -r rdate; do d=`echo $rdate | awk -F "_" '{print $2$3}' | sed 's/.jpg//g' | sed -E 's/(....)(..)(..)(..)(..)(..)/\1\/\2\/\3 \4:\5:\6/'`; touch -d"$d" $rdate ; done