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回复 21# 饺子必须死
check again
$ man cp
NAME
cp - copy files and directories
SYNOPSIS
cp [OPTION]... [-T] SOURCE DEST
cp [OPTION]... SOURCE... DIRECTORY
cp [OPTION]... -t DIRECTORY SOURCE...
DESCRIPTION
Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.
Mandatory arguments to long options are mandatory for short options
too.
-a, --archive
same as -dR --preserve=all
...
-f, --force
if an existing destination file cannot be opened, remove it and
try again (redundant if the -n option is used)
...
-R, -r, --recursive
copy directories recursively
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