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Special Forums News, Links, Events and Announcements Software Releases - RSS News Object Shell 0.9.2 (Default branch)
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Old 01-02-2008
Object Shell 0.9.2 (Default branch)
Object Shell (osh) is a tool that integrates the processing of structured data, database access, and remote access to a cluster of nodes. These capabilities are made available through a command-line interface (CLI) and a Python application programming interface (API). Osh processes streams of Python objects using simple commands. Complex data processing is achieved by command sequences in which the output from one command is passed to the input of the next. This is similar to composing Unix commands using pipes, but not limited to passing strings. License: GNU General Public License (GPL) Changes:
Support for "running totals" was added to the agg command (with the -r flag). Bugs were fixed.Image

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LEARN ABOUT HPUX

cmdo

cmdo(1m)																  cmdo(1m)

NAME

       cmdo - Execute process on multiple remote Serviceguard nodes.

SYNOPSIS

       cmdo [[-n node_name]...] [-t timeout] command

DESCRIPTION

       cmdo will execute a process on a multiple remote Serviceguard nodes and return any output or return value.

       cmdo  is  limited in several ways. cmdo is best suited for situations where other remote execution facilities are not available. For a more
       full featured tool for remote execution within a cluster, see cexec(1m) provided by Distributed Systems Administration Utilities.

       To use this command, the local user must have the root access role on each of the involved nodes.  For  more  information  on  Serviceguard
       access control policies, see the manual, Managing Serviceguard.

       To  use the cmdo command without specifying -n options, the local node must be configured into a Serviceguard cluster. If no -n options are
       specified, the command will be executed on all available nodes in the cluster.

       The command will be executed in an environment which matches the local node.  All environment variables defined locally will  be  available
       on the remote node.

       Output  from  stderr  and stdout for the remote process will be combined and delivered in one transmission. This command should not be used
       for interactive commands or commands which will return large quantities of output.  Output from each node will be displayed sequentially as
       the operation is executed on each remote node.

       Input via stdin is not supported.

       Killing the cmdo process does not stop any remote executions of the command.  cmdo should not be used on any command which may hang without
       specifying a timeout value.

   Options And Arguments
	      -t timeout
		   Kill the executed command if it does not exit within the specified timeout (in seconds)

	      -n node_name
		   Serviceguard node to execute command on. If no -n options are specified, all the nodes configured in the cluster are used.

	      command
		   Command to execute on remote node. May be quoted.

RETURN VALUE

       cmdo returns the following values:

	       0   Successful completed on all nodes.
	       >0  Command failed on one or more nodes with the specified exit value.
EXAMPLES

       Execute an 'ls' in a remote directory on all nodes within the cluster.
	      cmdo ls /tmp
       Execute an 'ls' in a remote directory on two nodes not configured within a Serviceguard cluster.
	      cmdo -n node1 -n node2 ls /tmp
AUTHOR

       cmdo was developed by HP.
SEE ALSO

       cexec(1m), cmcp(1m), cmexec(1m), cmsync(1m), cmquerycl(1m), cmviewcl(1m)

						      Requires Optional Serviceguard Software						  cmdo(1m)