NAME

       dar_cp - 'cp' clone command that is able to copy data located after an I/O error

SYNOPSIS

       dar_cp [-f] <source file> <destination file>

       dar_cp -h

       dar_cp -V

DESCRIPTION

       dar_cp  is  similar  to the standard 'cp' command, except it does not stop copying when an
       I/O error is met. Instead, it skips a bit further and continues to copy the  rest  of  the
       file, as much as possible, filling the gaps by zeroed bytes.

       dar_cp only accepts full filename (not directory) as argument. The reason of its existence
       in dar package is that you need it if you use Parchive with dar and have a corruption on a
       CD-R  or  any other read-only medium. You need to copy the corrupted slice on a read-write
       filesystem, for Parchive be able to repair it using slice associated redundancy files.

OPTIONS

       -h                  Displays help usage.

       -V                  Displays version information.

       -f                  without -f option, dar_cp will abort if the destination  file  exists,
                           this  is  to  prevent  human error. However it may be useful to have a
                           special device as destination like when facing a disk corruption in  a
                           unused block. dar_cp can then copy the content of this disk to another
                           one of equal or larger size. But in that case the destination is  also
                           a  special device and has to exists before dar_cp runs, where from the
                           need of -f option. Once the disk  copy  has  finished,  one  can  then
                           eventually  resize  partitions  and  file-systems  to leverage the new
                           larger disk.

EXIT CODES

       dar_cp exists with the following codes:

       0         upon normal execution (be some corrupted parted skipped or not)

       1         syntax error on command-line

       2         could not open source or destination files

       3         any other system error met during the copy

       5         when some data could not be copied due to I/O error

SIGNALS

       Any signal sent to dar_cp will abort the program immediately, there is no way  to  have  a
       proper termination before the end of the process

SEE ALSO

       dar(1), dar_xform(1), dar_manager(1), dar_slave(1), dar_split(1)

KNOWN BUGS

       http://sourceforge.net/p/dar/bugs/

AUTHOR

       http://dar.linux.free.fr/
       Denis Corbin
       France
       Europe