NAME

       parallel-scp — parallel process kill program

SYNOPSIS

       parallel-scp [-vAr] [-h hosts_file] [-H [user@]host[:port]] [-l user] [-p par] [-o outdir]
       [-e errdir] [-t timeout] [-O options] [-x args] [-X arg] local remote

DESCRIPTION

       parallel-scp is a program for copying files in parallel to a number of hosts.  It provides
       features such as passing a password to scp, saving output to files, and timing out.

OPTIONS

       -h host_file
       --hosts host_file
              Read  hosts  from  the  given  host_file.   Lines  in the host file are of the form
              [user@]host[:port] and can include blank lines and comments (lines  beginning  with
              "#").   If  multiple  host  files are given (the -h option is used more than once),
              then parallel-scp behaves as though these files were concatenated together.   If  a
              host  is  specified multiple times, then parallel-scp will connect the given number
              of times.

       -H     [user@]host[:port]
       --host [user@]host[:port]
       -H     "[user@]host[:port] [ [user@]host[:port ] ... ]"
       --host "[user@]host[:port] [ [user@]host[:port ] ... ]"
              Add the given host strings to the list of hosts.  This option may be given multiple
              times, and may be used in conjunction with the -h option.

       -l user
       --user user
              Use  the given username as the default for any host entries that don't specifically
              specify a user.

       -p parallelism
       --par parallelism
              Use the given number as the maximum number of concurrent connections.

       -t timeout
       --timeout timeout
              Make connections time out after the given number of seconds.  With a  value  of  0,
              parallel-scp will not timeout any connections.

       -o outdir
       --outdir outdir
              Save  standard  output  to files in the given directory.  Filenames are of the form
              [user@]host[:port][.num] where the user and port are only included for  hosts  that
              explicitly specify them.  The number is a counter that is incremented each time for
              hosts that are specified more than once.

       -e errdir
       --errdir errdir
              Save standard error to files in the given directory.  Filenames  are  of  the  same
              form as with the -o option.

       -x args
       --extra-args args
              Passes  extra  SSH  command-line  arguments  (see  the  ssh(1)  man  page  for more
              information about SSH arguments).  This option may  be  specified  multiple  times.
              The arguments are processed to split on whitespace, protect text within quotes, and
              escape with backslashes.  To pass arguments without such  processing,  use  the  -X
              option instead.

       -X arg
       --extra-arg arg
              Passes  a  single  SSH  command-line  argument  (see  the  ssh(1) man page for more
              information about SSH arguments).  Unlike the -x option, no processing is performed
              on   the  argument,  including  word  splitting.   To  pass  multiple  command-line
              arguments, use the option once for each argument.

       -O options
       --options options
              SSH options in the format used in the SSH configuration file (see the ssh_config(5)
              man page for more information).  This option may be specified multiple times.

       -A
       --askpass
              Prompt  for  a password and pass it to ssh.  The password may be used for either to
              unlock a key or for password authentication.  The  password  is  transferred  in  a
              fairly  secure  manner  (e.g., it will not show up in argument lists).  However, be
              aware that a root user on your system could potentially intercept the password.

       -v
       --verbose
              Include error messages from ssh with the -i and \ options.

       -r
       --recursive
              Recursively copy directories.

TIPS

       The ssh_config file can include an arbitrary number of Host  sections.   Each  host  entry
       specifies  ssh  options  which  apply  only  to the given host.  Host definitions can even
       behave like aliases if the HostName option is included.  This ssh feature, in  combination
       with pssh host files, provides a tremendous amount of flexibility.

EXIT STATUS

       The exit status codes from parallel-scp are as follows:

       0      Success

       1      Miscellaneous error

       2      Syntax or usage error

       3      At least one process was killed by a signal or timed out.

       4      All  processes  completed,  but  at  least  one scp process reported an error (exit
              status other than 0).

AUTHORS

       Written by Brent N. Chun <bnc@theether.org> and Andrew McNabb <amcnabb@mcnabbs.org>.

       http://code.google.com/p/parallel-ssh/

SEE ALSO

       ssh(1), ssh_config(5), parallel-ssh(1),  parallel-rsync(1),  parallel-slurp(1),  parallel-
       nuke(1),

                                         January 24, 2012                         parallel-scp(1)