dd

Convert and copy a file. More information: https://www.gnu.org/software/coreutils/dd.

• Make a bootable USB drive from an isohybrid file (such like archlinux-xxx.iso):
  dd if={{path/to/file.iso}} of=/dev/{{usb_drive}}
• Clone a drive to another drive with 4 MiB block and ignore error:
  dd if=/dev/{{source_drive}} of=/dev/{{dest_drive}} bs={{4194304}} conv={{noerror}}
• Generate a file of 100 random bytes by using kernel random driver:
  dd if=/dev/urandom of={{path/to/random_file}} bs={{100}} count={{1}}
• Benchmark the write performance of a disk:
  dd if=/dev/zero of={{path/to/file_1GB}} bs={{1024}} count={{1000000}}
• Generate a system backup into an IMG file:
  dd if={{/dev/drive_device}} of={{path/to/file.img}}
• Restore a drive from an IMG file:
  dd if={{path/to/file.img}} of={{/dev/drive_device}}