xenial (1) rdup-tr.1.gz

Provided by: rdup_1.1.11-1.1build1_amd64 bug

NAME

       rdup-tr - transform rdup output

SYNOPSIS

       rdup-tr [OPTION]...

DESCRIPTION

       Transform  rdup  output  into  something  else.  Where  something else can be a tar, cpio, pax archive or
       another rdup stream.

       The rdup archive must be given on rdup-tr's standard input.

       You can select multiple types of output (-O flag), but  you  must  be  aware  that  you  may  loose  some
       information in formats other than rdup's own, see the table below.

       You may also supply rdup-tr with only a list of pathnames, this can be selected with the -L flag.

       The following table shows what happens with the output depending on the input.

       0      OK

       D      delete information is lost

       H      hardlink information is lost

                            │               │
                  output    │ tar,cpio,pax  │  rdup
              input         │               │
              ------------- │ ------------- │ ------
              rdup          │     D         │   0
              filelist      │     DH        │   H
                            │               │

OPTIONS

       -L     Select list input format. Normally rdup-tr accepts rdup output, with this option you can give it a
              list of path names.  Note: with list input rdup-tr will `stat()` each file.

       -O     Output format. This can be 'tar', 'cpio', 'pax' or 'rdup'. It defaults to 'rdup'.

       -X key Read the encryption key from the file key and encrypt all paths with Blowfish and this key and iv.
              After  the  encryption the binary data is converted into ASCII using an URL safe (Section 4 of RFC
              3548) version of base64 encode.

              The encryption key must be on the first line and the key size must be 16 and 8 bytes for  the  iv,
              so 24 in total.

       -Y key Read the decryption key from the file key and decrypt all paths with Blowfish and this key. Before
              the encryption the paths are converted to binary by using an URL safe version of base64 decode.

       -c     Force output to the tty. Normally rdup-tr wants to see it's output redirected.

       -v     Be more verbose.

       -V     Print rdup-tr's version.

       -h     A short help.

EXAMPLES

       The following is possible

               rdup -Pgzip -Pmcrypt,-f,KEY,-c /dev/null /home | \
               rdup-tr -O tar -X<(echo secret) | gzip > \
               my-home-zipped-crypted-pathcrypted-tar.gz

       That is: all files under /home are gzipped and encrypted on a per file basis (first line). Further  more,
       all  pathnames  are  Blowfish  encrypted (second line) with the key 'secret'.  This is put in a tar file,
       which is then compressed, resulting in the final output (final line).

       Creating a compressed and encrypted tar archive out of a full rdup dump might be done as follows

               rdup -Pgzip -Pmcrypt,-f,KEY,-c /dev/null /home | \
               rdup-tr -O tar > my-home-zipped-and-crypted.tar

       Or even pack and unpack it on the fly

               rdup -Pgzip -Pmcrypt,-fKEY,-c /dev/null /home | rdup-tr -Otar | \
               ssh user@remotehost tar xvCf /tmp -

       Or encryption with openssl

              rdup -Popenssl,enc,-e,-des-cbc,-k,secret /dev/null /home

       Or, compressing with gzip, encrypting with openssl and then compressing the entire archive yet again

               rdup -Pgzip -Popenssl,enc,-e,-des-cbc,-k,secret /dev/null /home | \
               gzip > my_compressed_encrypted_rdup_archive.gz

       Recreating the original rdup output, which can be fed to rdup-up.

               gunzip -c my_compressed_encrypted_rdup_archive.gz |\
               rdup-tr -Popenssl,enc,-d,-des-cbc,-k,secret -Pgzip,-d >\
               my_rdup_archive

               rdup-up < my_rdup_archive -t /tmp/restore

       Notice the reversal of the -P options.

EXIT CODE

       rdup-tr return a zero exit code on success, otherwise 1 is returned.

AUTHOR

       Written by Miek Gieben.

REPORTING BUGS

       Report bugs to <miek@miek.nl>.

SEE ALSO

       http:/www.miek.nl/projects/rdup/ is the main site  of  rdup.  Also  see  rdup(1),  rdup-up(1)  and  rdup-
       backups(7).

       Copyright  (C)  2005-2010  Miek  Gieben.  This  is  free  software.  There  is  NO warranty; not even for
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

       Licensed under the GPL version 3. See the file LICENSE in the source distribution of rdup.