Ask HN: How do you organize your expertise?

    #!/bin/bash
    SCRIPT_NAME=$(basename "$0")
    if pgrep -f "$SHELL.*$SCRIPT_NAME" | grep -v $$ > /dev/null; then
        echo "The notes are already being edited elsewhere."
        exit 1
    fi
    NOTE_DIR="${NOTE_DIR:-${HOME}/notes}"
    CURRENT_NOTE=$(date +%Y-week%V)
    LAST_WEEK_NAME=$(date -d '7 days ago' +%Y-week%V)
    NOTE_PATHS=("$NOTE_DIR/$CURRENT_NOTE" "$NOTE_DIR/$LAST_WEEK_NAME")
    EDITOR="${EDITOR:-vim}"
    if [[ $EDITOR == *vim* ]]; then
        # Run the vim-like editor with tabs
        $EDITOR -c ':tab all' "${NOTE_PATHS[@]}"
    else
        # Run the editor without vim tab arg; assume array is fine
        $EDITOR "${NOTE_PATHS[@]}"
    fi