On Fri, Jul 02, 2021 at 07:31:24AM -0400, Greg Wooledge wrote: > On Fri, Jul 02, 2021 at 09:49:23AM +0200, tomas@tuxteam.de wrote: > > sudo dd of=/etc/hosts oflags=append > > This appears to be a typo for "oflag=append", which is a GNU extension, > not part of the standard POSIX dd. No wonder I didn't know about it. ;-) > > The bullseye version of GNU coreutils dd also gives a warning message > with this particular flag: > > unicorn:~$ echo g | dd of=foo oflag=append > dd: you probably want conv=notrunc with oflag=append > 0+1 records in > 0+1 records out > 2 bytes copied, 9.141e-05 s, 21.9 kB/s > > Not sure if that's unique to bullseye. But anyway, yes, the warning > is accurate; without conv=notrunc, my test file "foo" got overwritten > with just the "g". Eek. Thanks. Cheers - t
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