=head1 Name

psh - parallel remote shell

=head1 B<Synopsis>

B<psh> [I<-s>] {I<noderange>|B<me>|I<pbs-job-id>} I<command>

B<psh> {B<-h>|B<--help>|B<-v>|B<--version>}

=head1 B<Description>

B<psh> is a utility used to run a command across a list of nodes in parallel.

B<ssh> must be set up to allow no prompting for B<psh> to work.

Note:  this command does not support the xcatd client/server communication and therefore must be run on the management node.

=head1 B<Options>

=over 7

=item B<-s>

Issues the commands serially.

=item B<noderange>

See L<noderange(3)|noderange.3>.

=item B<me>

Run  against  nodes  owned  by "me" as listed by PBS's B<qstat(1B)>
command.

=item B<pbs>

Run against nodes assigned to a  PBS  job  as  listed  by  PBS's
B<qstat(1B)> command.

=item B<command>

Command  to  be run in parallel.  If no command is give then B<psh>
enters interactive mode.  In interactive mode a  ">"  prompt  is
displayed.   Any  command entered is executed in parallel to the
nodes in the noderange. Use "exit" or "Ctrl-D" to end the interactive session.

=item B<-h>|B<--help>

Print help.

=item B<-v>|B<--version>

Print version.

=back


=head1 B<Examples>

B<psh> I<node4-node6> I<uptime>

node4: Sun Aug  5 17:42:06 MDT 2001
node5: Sun Aug  5 17:42:06 MDT 2001
node6: Sun Aug  5 17:42:06 MDT 2001

B<psh> I<node1-node10> I<rm> I<-f> I</tmp/blah>

B<psh> I<rack01> I<'rm> I<-f> I</tmp/*'>

Notice the use of '' to forward shell expansion.  This is not necessary
in interactive mode.

=head1 B<Author>

Egan Ford <egan@us.ibm.com>

=head1 B<See> B<Also>

L<noderange(3)|noderange.3>, L<pscp(1)|pscp.1>, L<pping(1)|pping.1>, L<prsync(1)|prsync.1>