On 2026-04-09, Charles Curley <[email protected]> wrote: > On Thu, 09 Apr 2026 16:45:52 +0300 > Teemu Likonen <[email protected]> wrote: > >> * 2026-04-09 09:29:42+0000, Turritopsis Dohrnii Teo En Ming wrote: >> >> > # dd if=/dev/mmcblk0 bs=4M status=progress | gzip -1 > >> > /backup/emmc.img.gz >> >> That is fine. > > Concur. > >> >> I think we should ditch "dd" and use a modern program like "pv" for >> data transfer monitoring. It has good defaults and progress output so >> usually options are not needed. >> >> pv /dev/whatever | gzip >file.gz > > While we're modernizing things, for compression, substitute pigz or > pbzip2 for gzip, and take advantage of multiple processors. They don't > get you much on decompression.
I don't understand pv. In apt show pv it says to insert it in a pipeline between two processes. What are the two processes here?
