execute() {
    while true
    do
# oldest folder stored as variable for analysis, version log created, and quality indicators matched to run
dir=/home/cmccabe/Desktop/NGS/API

find "$dir" -maxdepth 1 -mindepth 1 -type d -printf '%T+\t%P\0' | sort -rz |
while read -r -d $'\t' time && read -r -d '' filename
do
    printf "The oldest folder is $filename, created on $time and analysis done using v1.7 by $USER at $(date "+%D %r")\n" >> /home/cmccabe/medex.logs/folder.log
    awk -v FL="$filename" '
         FNR == 1 {filenum++}
         filenum==1 && index($0, FL) { 
              match($0, "_0*([0-9]+)/")
              FNUM=substr($0,RSTART+1,RLENGTH-2)
              gsub(/^0+/,"", FNUM)
          }
          #filenum==2 && $0 ~ FNUM".pdf$"' /home/cmccabe/s5_files/downloads/list /home/cmccabe/s5_files/pdf/pdf > /home/cmccabe/s5_files/pdf/output
    break
done
...
...
...
...
panel
done
}

menu() {
    while true
    do
        printf "\n please make a selection from the MENU \n
        ==================================
        \t 1  gene
        \t 2  test
        ==================================\n\n"
        printf "\t Your choice: "; read menu_choice
        echo "$menu_coice panel selected"

        case "$menu_choice" in
        1) gene ;;
        2) test ;;
        *) printf "\n Invalid choice."; sleep 2 ;;
        esac
    done
}


while true; do
    read -p "Do you want to start the me?" yn
    case $yn in
        [Yy]* ) execute; break ;;
        [Nn]* ) exit ;;
        * ) echo "Please answer yes or no.";;
    esac
done

panel() {
    printf "Do you want to get coverage of a specific gene, genes, or panel?"; read yn
    case $yn in
        [Yy]* ) menu ;;
        [Nn]* ) move ;;
        * ) echo "Please answer yes or no.";;
    esac
}