On 09/20/2010 05:22 AM, Yann wrote:
Dear all,
I searched into "man cp" and the online manual, but did not find any clue...
What is the meaning of -avrd option after cp command ? (Is it the same
as -a option ?)
POSIX requires support for option-letter compression, and GNU tools obey
this by virtue of getopt_long(). That is:
cp -avrd
is strictly equivalent to:
cp -a -v -r -d
The basic rule of thumb is that you can omit ' -' after any short option
that does not take an argument and which is followed by another short
option. And for short options that take mandatory arguments, such as cp
-t, you can omit the space between the option and its argument, so these
are the same:
cp -a -t . foo
cp -at. foo
--
Eric Blake [email protected] +1-801-349-2682
Libvirt virtualization library http://libvirt.org
