make file container with some filesystem

run.sh

#!/bin/bash

# Make file container with 100Gb size
dd if=/dev/zero of=container.ext4 bs=1M count=102400 

# Format with ext4 fs
mkfs ext4 -F container.ext4

# Make mount-directory
sudo mkdir -p /mnt/container_dir

# Mount container
sudo mount -o loop,rw,sync container.ext4 /mnt/container_dir

# Unmount container
sudo umount /mnt/container_dir