Unmount a given ext4 filesystem and check it for bad blocks, then remount it

ext4-check-bad-blocks.sh

#!/bin/bash

# Check if the user has provided a device or partition argument
if [ "$#" -ne 1 ]; then
    echo "Usage: $0 <device>"
    exit 1
fi

DEVICE=$1

# Unmount the device to avoid any conflicts with mounted filesystems
umount "$DEVICE"

# Run fsck.ext4 with long options for better readability
fsck.ext4 --force \
           --check \
           --keep-going \
           --preen \
           --test \
           --verbose \
           --debug \
           --inode-count-fullmap \
           "$DEVICE"

# Re-mount the device after repairs are complete
mount "$DEVICE"