this post was submitted on 12 Jun 2024
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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cat is for writing files, dd for writing disks.
Can you explain how this can work?
No, cat is not for writing files. Cat is for reading files and directing the data to standard output.
With ">" you are directing standard output to a file, in this case a blockdevice.
Cool, need to try that
/dev/sdX
is a file, and bothdd
,cat
can read files in full. You can even try something likezstd
to compress it too.One of the nice things about
dd
though is you can see the progress with--status=progress