GSH

Section: Maintenance Commands (8)
Updated: 13 May 1988
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NAME

gsh - global shell  

SYNOPSIS

gsh [options] host [options] command  

DESCRIPTION

gsh works just like rsh(1C) except that you may specify a set of hosts to execute the command on. The host sets are defined in the file /etc/ghosts. (An individual host name can be used as a set containing one member.) You can give a command like         gsh sun /etc/mungmotd
to run /etc/mungmotd on all your Suns. You may specify the union of two or more sets by using + as follows:         gsh 750+mc /etc/mungmotd
which will run mungmotd on all 750's and Masscomps. Commonly used sets should be defined in /etc/ghosts. For example, you could add a line that says         pep=manny+moe+jack
Another way to do that would be to add the word "pep" after each of the host entries:         manny   sun3 pep

       moe             sun3 pep

       jack            sun3 pep
Hosts and sets of host can also be excluded:         foo=sun-sun2
Any host so excluded will never be included, even if a subsequent set on the line includes it:         foo=abc+def
        bar=xyz-abc+foo
comes out to xyz+def. You can define private host sets by creating .ghosts in your current directory with entries just like /etc/ghosts. Also, if there is a file .grem, it defines "rem" to be the remaining hosts from the last gsh or gcp that didn't succeed everywhere. Options include all those defined by rsh, as well as
-d
Causes gsh to collect input till end of file, and then distribute that input to each invokation of rsh.
-h
Rather than print out the command followed by the output, merely prepends the host name to each line of output.
-s
Do work silently.

Interrupting with a SIGINT will cause the rsh to the current host to be skipped and execution resumed with the next host. To stop completely, send a SIGQUIT.  

SEE ALSO

rsh(1C)  

BUGS

All the bugs of rsh, since it calls rsh. Also, will not properly return data from the remote execution that contains null characters.

 

Index

NAME
SYNOPSIS
DESCRIPTION
SEE ALSO
BUGS
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Time: 07:25:42 GMT, February 14, 2023