dd
Convert and copy a file. More information: https://keith.github.io/xcode-man-pages/dd.1.html.
-
Make a bootable USB drive from an isohybrid file (such like
archlinux-xxx.iso
) and show the progress:
dd if={{path/to/file.iso}} of={{/dev/usb_device}} status=progress
-
Clone a drive to another drive with 4 MB block, ignore error and show the progress:
dd if={{/dev/source_device}} of={{/dev/dest_device}} bs={{4m}} conv={{noerror}} status=progress
-
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}}
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Benchmark the write performance of a disk:
dd if=/dev/zero of={{path/to/1GB_file}} bs={{1024}} count={{1000000}}
-
Generate a system backup into an IMG file and show the progress:
dd if=/dev/{{drive_device}} of={{path/to/file.img}} status=progress
-
Restore a drive from an IMG file and show the progress:
dd if={{path/to/file.img}} of={{/dev/drive_device}} status=progress
-
Check the progress of an ongoing dd operation (run this command from another shell):
kill -USR1 $(pgrep ^dd)
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