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dar_cp - Online in the Cloud

Run dar_cp in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command dar_cp that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



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


dar_cp <source file> <destination file>

dar_cp -h

dar_cp -V


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.


-h Displays help usage.

-V Displays version information.


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


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

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