ClusterPack Tutorial

clsh exits non-zero if there are problems running the remote shell commands. A summary of

hosts on which problems occurred is printed at the end.

clsh is used as follows:

clsh [-C cluster-group] [options] cmd [args]

Examples

To grep for something on all hosts in the cluster:

% clsh grep pattern files ...

To append something to a file on all machines:

clsh -i "cat >> file" < addendum

To run a command with a five second timeout on all the hosts in the cluster group "hp",

directing output into separate files:

clsh -o -t5 -C hp date

% clsh -o -t5 hp date

A cluster name without a -C must follow all flag arguments.

For more details on the usage of clsh, invoke the command:

man clsh

3.1.6 clcp - Copies files to one, some, or all cluster nodes.

clcp copies files between nodes in the cluster using rcp. Each file for directory argument is

either a remote file name of the form "%h:path", "cluster:path", or a local file name

(containing no ":" characters).

clcp can do the following types of copies:

single local to single local

% clcp src dst

single local to multiple local

clcp src dst.%h