41 lines
1.4 KiB
Bash
Executable file
41 lines
1.4 KiB
Bash
Executable file
#!/bin/bash
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#
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# requires "jhead" (yum/apt-get install jhead)
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# normalize JPG files based on their EXIF header - handy for loads of pics
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# taken with different cameras (several phones, e.g.) that store the EXIF
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# dates in different formats and name the files differently.
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#
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# Result: YYYY-MM-DD_HH-MM-SS_###.jpg (where ### is random 100-999)
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#
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# This script also updates date/timestamp on disk, then reverse updates the
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# EXIF header from that stamp to normalize your headers DATE/TIME field
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#
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# SPDX-License-Identifier: MIT
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for file in *.jpg *.jpeg *.JPG *.JPEG; do
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if [ ! -e "$file" ]; then
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continue
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fi
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echo "Inspecting $file"
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JPGDT=$(jhead "$file" | grep "Date/Time")
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JPGFC=$(jhead "$file" | grep "Date/Time" -c)
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# shellcheck disable=SC2086
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if [ $JPGFC -gt 1 ]; then
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echo "Found too many results for: $file"
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continue
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elif [ $JPGFC -eq 0 ]; then
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echo "No valid headers found."
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continue
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else
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BASE=$(echo $JPGDT | awk '{ printf("%s %s",$3,$4) }' | sed -e 's/\([0-9][0-9]\).\([0-9][0-9]\).\([0-9][0-9]\) \([0-9][0-9]\).\([0-9][0-9]\).\([0-9][0-9]\)/\1-\2-\3 \4:\5:\6/')
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BASE=$(date -d "$BASE" +"%Y-%m-%d_%H-%M-%S")
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# shellcheck disable=SC2007
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RND=$[($RANDOM%899)+100]
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if [ ! -e "${BASE}_${RND}.jpg" ]; then
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echo "New file: ${BASE}_${RND}.jpg"
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mv "$file" "${BASE}_${RND}.jpg"
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jhead -ft "${BASE}_${RND}.jpg"
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jhead -dsft "${BASE}_${RND}.jpg"
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fi
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fi
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done
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