Converts files names from Agenda app to Obsidian 'Daily notes' format

agenda2obsidian.sh

#!/bin/bash

# Loop through each file in the current directory
for file in *.md
do
    # Check if the file name matches the pattern "D MM YYYY"
    if [[ $file =~ ^([0-9]{1,2})\ ([A-Za-z]{3})\ ([0-9]{4})\.md$ ]]
    then
        # Extract the day, month, and year from the file name
        day=${BASH_REMATCH[1]}
        month=${BASH_REMATCH[2]}
        year=${BASH_REMATCH[3]}
        
        # Convert the month abbreviation to a numeric value
        case $month in
            "Jan") month="01";;
            "Feb") month="02";;
            "Mar") month="03";;
            "Apr") month="04";;
            "May") month="05";;
            "Jun") month="06";;
            "Jul") month="07";;
            "Aug") month="08";;
            "Sep") month="09";;
            "Oct") month="10";;
            "Nov") month="11";;
            "Dec") month="12";;
        esac
        
        # Add a leading zero to day if it's a single digit
        if [ ${#day} -eq 1 ]
        then
            day="0${day}"
        fi
        
        # Rename the file with the new format "YYYY-MM-DD"
        new_name="${year}-${month}-${day}.md"
        mv "$file" "$new_name"
        echo "$file => $new_name"
    fi
done