prsync (1) - Linux Manuals
prsync: parallel process kill program
NAME
prsync --- parallel process kill program
SYNOPSIS
prsync [-vAraz] [-h hosts_file] [-H [user@]host[:port]] [-l user] [-p par] [-o outdir] [-e errdir] [-t timeout] [-O options] [-x args] [-X arg] [-S args] local remote
DESCRIPTION
prsync is a program for copying files in parallel to a number of hosts. It provides features such as passing a password to ssh, 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 prsync behaves as though these files
were concatenated together.
If a host is specified multiple times, then prsync 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, prsync 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 rsync command-line arguments (see the
rsync(1)
man page for more information about rsync 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 rsync command-line argument (see the
rsync(1)
man page for more information about rsync 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 rsync with the
-i
and
\
options.
- -r
- --recursive
-
Recursively copy directories.
- -a
- --archive
-
Use rsync archive mode (rsync's -a option).
- -z
- --compress
-
Use rsync compression.
- -S args
- --ssh-args args
-
Passes extra SSH command-line arguments (see the
ssh(1)
man page for more information about SSH arguments).
The given value is appended to the ssh command (rsync's -e option) without
any processing.
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 prsync 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 rsync process reported an error
(exit status other than 0).
AUTHORS
Written by Brent N. Chun <bnc [at] theether.org> and Andrew McNabb <amcnabb [at] mcnabbs.org>.
http://code.google.com/p/parallel-ssh/