Create bootable usb through Linux terminal (ONLY FOR LINUX ISO)

create_bootable_iso.sh

//check dev id
sudo fdisk -l 

sample output:
Disk /dev/sdc: 14.3 GiB, 15376000000 bytes, 30031250 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

//Unmount the usb
umount /dev/{dev_id}

//Format usb
sudo mkfs.ext /dev/{dev_id}

// creating usb using dd command
sudo dd if={iso_path} of=/dev/{dev_id}