this post was submitted on 12 Jul 2023
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How can I use BASH to parse metadata from jpg and mp4 files? (lemmy.dbzer0.com)
submitted 1 year ago by Pyrozo007@lemmy.dbzer0.com to c/linux@lemmy.ml
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Title basically, I need to parse the date modified, the time and seconds in order to reconstruct the filenames in the format of an android phone's camera roll.

I should be able to make the script once I know how to parse the metadata is all

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[–] eager_eagle@lemmy.world 18 points 1 year ago

maybe something like this using mediainfo and exiftool?

#!/bin/bash

for file in *.jpg *.mp4; do
    # Extract date and time from file's metadata
    if [[ $file == *.jpg ]]; then
        datetime=$(exiftool -DateTimeOriginal -d "%Y%m%d_%H%M%S" "$file" | awk -F': ' '{print $2}')
    else
        datetime=$(mediainfo --Output="General;%File_Modified_Date%" "$file" | awk -F' ' '{print $1"_"$2}' | tr -d ':' | tr -d '-')
    fi

    # If datetime was found, rename the file 
    if [ -n "$datetime" ]; then
        # Extract extension of file 
        ext="${file##*.}"
        # Rename file with date and time as prefix (remove echo after testing it)
        echo mv -- "$file" "${datetime}.${ext}"
    fi

done