Why do it in 2 steps? ;)
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$ curl https://download.freebsd.org/releases/amd64/amd64/ISO-IMAGES/13.1/FreeBSD-13.1-RELEASE-amd64-dvd1.iso.xz |tee FreeBSD-13.1-RELEASE-amd64-dvd1.iso.xz |unxz |doas dd bs=1M of=/dev/sd2c
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
21 3255M 21 714M 0 0 386k 0 2:23:47 0:31:34 1:52:13 428k
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#bsd #curl #tee #xz #dd #commandlinekungfu