format_flash_disk.sh

format_flash_disk.sh

#!/bin/bash

# It formats interactively your last_attached flash_disk.
#
#     WARNING: It's under construction, this is the first working script
#     There may be issues and improvements to be made. Any help will be appreciated.
#
# By MarcelFox

last_flash_disk=$(sudo dmesg -T | grep removable | tail -n1 | awk '{print $8"1"}' | sed 's/\[//g; s/\]//g')
detailed_flash_disk=$(sudo fdisk -l | grep $last_flash_disk)
fsck_warn="$(sudo dmesg | tail -n 10 | grep $last_flash_disk | grep fsck)"
its_mounted="$(mount | grep $last_flash_disk)"
mount_point="$(mount | grep $last_flash_disk | awk '{print $3}')"

if [[ -z $detailed_flash_disk ]]; then
    printf "\nThere's no attached devices.\n"
else
    printf "The last disk attached was:\n"
    echo "$detailed_flash_disk"
    
    if [[ ! -z $its_mounted ]]; then
        printf "\nYour device is mounted at '$mount_point'."
        printf "\nTo proceed, you must umount the device\n"
        printf "Umount the device? (y/n):  "
        read check
    
        if [ $check == "y" ] || [ $check == "Y" ]; then
            sudo umount /dev/$last_flash_disk
        elif [ $check == "n" ] || [ $check == "N" ]; then
            echo "Ok!"
        else
            echo "Please inform only 'y' or 'n'"
        fi
    fi
    
    
    if [[ ! -z $fsck_warn ]] && [[ ! -z $detailed_flash_disk ]]; then
        printf "\nThe last fsck warn on the device, please check the date:\n"
        printf "$fsck_warn\n"
        printf "\nRun fsck on the device? (y/n):  "
        read check
        if [ $check == "y" ] || [ $check == "Y" ]; then
            sudo fsck /dev/$last_flash_disk
        elif [ $check == "n" ] || [ $check == "N" ]; then
            echo "Ok!"
        else
            echo "Please inform only 'y' or 'n'"
        fi 
    fi
    
    
    printf "\nDo you want to format your $last_flash_disk using fat32? (y/n):  "
    
    read check
    
    if [ $check == "y" ] || [ $check == "Y" ]; then
        printf "\nPlease inform the new label of your flash disk:  ";
        read new_disk_label
        sudo mkfs.vfat -n $new_disk_label /dev/$last_flash_disk;
    elif [ $check == "n" ] || [ $check == "N" ]; then
        echo "Not formatting..."
    else
        echo "Please inform only 'y' or 'n'"
    fi
fi

It uses sudo!

You can run directly with:
bash <(curl -ks https://gist.githubusercontent.com/MarcelFox/0bb532b3cdb4e9729219cc4ecb054c71/raw/bac89a44acd34e10a34cda68c95176aa9d6e2ee4/format_flash_disk.sh)