Mi sono appena imbattuto in questo e il cp
comando integrato lo gestisce effettivamente.
Ho scoperto un mucchio di vecchie schede CF da cui volevo raccogliere le immagini. I miei script di elaborazione esamineranno il file mtime per metterlo nella posizione corretta, quindi ho bisogno di conservarlo.
Dalla pagina man :
-p Cause cp to preserve the following attributes of each source file in the copy: modification time,
access time, file flags, file mode, user ID, and group ID, as allowed by permissions. Access
Control Lists (ACLs) and Extended Attributes (EAs), including resource forks, will also be pre-
served.
If the user ID and group ID cannot be preserved, no error message is displayed and the exit value
is not altered.
If the source file has its set-user-ID bit on and the user ID cannot be preserved, the set-user-
ID bit is not preserved in the copy's permissions. If the source file has its set-group-ID bit
on and the group ID cannot be preserved, the set-group-ID bit is not preserved in the copy's per-
missions. If the source file has both its set-user-ID and set-group-ID bits on, and either the
user ID or group ID cannot be preserved, neither the set-user-ID nor set-group-ID bits are pre-
served in the copy's permissions.
Quindi, usando zsh
sono stato in grado di eseguire ( NO NAME
essendo il nome del volume delle mie carte):
cp -rvp /Volumes/NO\ NAME/DCIM/**/*.{JPG,jpg} ~/Desktop/tmp/pics
Credo che il /**/*
costrutto speciale sia specifico di ZSH; comunque potresti fare qualcosa del genere
find /Volumes/WHATEVER -type d -print0 | xargs cp -vp {}/*.JPG /my/out/path