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Full Discussion: Copy a file from local host to a list of remote hosts --- perl script
Top Forums Shell Programming and Scripting Copy a file from local host to a list of remote hosts --- perl script Post 302801395 by hanson44 on Thursday 2nd of May 2013 01:14:29 AM
Old 05-02-2013
The basic idea is to put in a shell script:
Code:
while read host; do
  scp demo.exe destination
done < hosts.txt

There are two difficult things here, maybe more.

First, you must specify the destination part, and build in the $host variable read from the hosts.txt file. Destination will be something like hanson44@myhost.com:/home/mydir but will depend on your local situation.

Second, you must have permissions set up to do the copying to the remote host. Again, that can be complicated and will depend on your local situation.

Before doing the shell script, you will need to make the scp work on the command line. Once you get that going, writing the shell script is not that difficult.
 

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LEARN ABOUT DEBIAN

gfrep

GFREP(1)																  GFREP(1)

NAME

       gfrep - replicate Gfarm files

SYNOPSIS

       gfrep  [  -mnqvx  ]  [ -S source-domainname ] [ -D destination-domainname ] [ -h source-hostfile ] [ -H destination-hostfile ] [ -N num-of-
       replicas ] [ -j num-of-threads ] path ...

DESCRIPTION

       gfrep creates specified number of replicas of Gfarm files specified by the path to specified set of destination hosts.  When set of  source
       hosts  are specified, only files stored on the set of source hosts are replicated.  A set of hosts can be specified by a domain name and/or
       a host file.  When both a domain name and a host file are specified, a set of hosts is determined by both conditions.

       If the path parameter is a directory, files under the directory will be copied recursively.

OPTIONS

       -S source-domainname
	      Specifies the domain name of source filesystem nodes from which replicas will be copied.

       -D destination-domainname
	      Specifies the domain name of destination filesystem nodes to which replicas will be copied.

	      If neither this nor the -H option is specified, replicas may be copied to any available host.

       -h source-hostfile
	      Specifies a file which describes hostnames of source filesystem nodes from which the replica will be made.  The source-hostfile con-
	      sists of a filesystem node name on each line.

	      if ``-'' is specified, standard input is used to read the host list.

       -H destination-hostfile
	      Specifies a file which describes hostnames of destination filesystem nodes on which the replica will be made.  The destination-host-
	      file consists of a filesystem node name on each line.

	      if ``-'' is specified, standard input is used to read the host list.

       -N num-of-replicas
	      Specifies the required number of file replicas, counting already existing ones.  If there are a sufficient number of replicas in the
	      destination hosts, neither any copying nor any removal will be done.

	      If this option is not specified, -N 1 is assumed.

       -j num-of-threads
	      Specifies  the number of threads to create file replicas simultaneously.	This option is only available when compiled by an OpenMP C
	      compiler.  By default, it will be the smallest among the number of total files, the number of source hosts, and the number of desti-
	      nation hosts.

       -m     Lets gfrep command do a migrate/move, instead of doing replication.

       -x     Removes file replicas when a set of destination nodes has more file replicas than specified.

       -n     Displays files to be replicated, but does nothing.

       -q     Suppresses non-error messages.

       -v     Displays verbose output.

       -?     Displays a list of command options.

BUGS

       A source host is not always selected within a set of source hosts.

Gfarm								 09 November 2009							  GFREP(1)
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