Re: question related to cp (-p) and /tmp

[Max Nikulin <manikulin@gmail.com>]

On 10/07/2024 02:35, Thomas Schmitt wrote:
> Here the error happens while trying to set the attribute.
> Shell equivalent is
>
>    setfattr -n system.nfs4_acl -v '\0\0\0\3\0\0\0\0\0\0\0\0\0\26\1\247\0\0\0\6OWNER@\0\0\0\0\0' /tmp/x

Shell does not interpret backslashes in single (and double) quotes. 
$'\0...' might be better

echo '\026' | xxd -g 1
00000000: 5c 30 32 36 0a                                   \026.

echo $'\026' | xxd -g 1
00000000: 16 0a                                            ..

C-style backslash escapes are interpreted by printf, but besides leading 
dash it would be necessary to deal with %-formats.

Sorry, I am familiar enough with NFS and extended file attributes to 
reason if cp should copy system.nfs4_acl in this particular case.