mirror of https://github.com/CrimsonTome/tldr.git
21 lines
584 B
Markdown
21 lines
584 B
Markdown
# dd
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> Convert and copy a file.
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> More information: <https://ss64.com/osx/dd.html>.
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- Make a bootable USB drive from an isohybrid file (such like `archlinux-xxx.iso`):
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`dd if={{file.iso}} of=/dev/{{usb_drive}}`
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- Clone a drive to another drive with 4 MB block and ignore error:
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`dd if=/dev/{{source_drive}} of=/dev/{{dest_drive}} bs=4m conv=noerror`
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- Generate a file of 100 random bytes by using kernel random driver:
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`dd if=/dev/urandom of={{random_file}} bs=100 count=1`
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- Benchmark the write performance of a disk:
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`dd if=/dev/zero of={{file_1GB}} bs=1024 count=1000000`
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