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Top Forums Shell Programming and Scripting Remote login and running a script on multiple servers Post 302891453 by weddy on Wednesday 5th of March 2014 10:56:07 PM
Old 03-05-2014
Hi Don,
What we are trying to create is a master script to run other scripts in the back ground on different machines.

to answer your questions
Code:
$host

are the host names of the 3 machines ws1 ws2 ws3. and
Code:
$process.sh

is the script name located on the NIS server which is the 4th machine making the initial call script. So all machines can see and access the script and its not written on each machine saving up needed space.

hope that answered the questions: now I have got some interesting results with the code for rsh

host names are config with Csh which is stty not supported for transit. (not sure what I just said but hope it helps)
and i have a ambiguous output redirect.

IE @Don you mentioned the direct to the null. Short answer is we don't care what the output is from the call, the script outputs to a different files those files are what we are after. But I think your right about having it directed to that null.

The rsh call stops and on the ws4 and creates a PID and waits until never (endless loop in script tracking memory) have to suspend and kill pid to stop it. again its not the problem but it stopping in the master script is.

any ideas I can research in to please throw them at me too. Thanks OJT scripting got to love it.
 

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RSH(1C) 																   RSH(1C)

NAME
rsh - remote shell SYNOPSIS
rsh host [ -l username ] [ -n ] command host [ -l username ] [ -n ] command DESCRIPTION
Rsh connects to the specified host, and executes the specified command. Rsh copies its standard input to the remote command, the standard output of the remote command to its standard output, and the standard error of the remote command to its standard error. Interrupt, quit and terminate signals are propagated to the remote command; rsh normally terminates when the remote command does. The remote username used is the same as your local username, unless you specify a different remote name with the -l option. This remote name must be equivalent (in the sense of rlogin(1C)) to the originating account; no provision is made for specifying a password with a com- mand. If you omit command, then instead of executing a single command, you will be logged in on the remote host using rlogin(1C). Shell metacharacters which are not quoted are interpreted on local machine, while quoted metacharacters are interpreted on the remote machine. Thus the command rsh otherhost cat remotefile >> localfile appends the remote file remotefile to the localfile localfile, while rsh otherhost cat remotefile ">>" otherremotefile appends remotefile to otherremotefile. Host names are given in the file /etc/hosts. Each host has one standard name (the first name given in the file), which is rather long and unambiguous, and optionally one or more nicknames. The host names for local machines are also commands in the directory /usr/hosts; if you put this directory in your search path then the rsh can be omitted. FILES
/etc/hosts /usr/hosts/* SEE ALSO
rlogin(1C) BUGS
If you are using csh(1) and put a rsh(1C) in the background without redirecting its input away from the terminal, it will block even if no reads are posted by the remote command. If no input is desired you should redirect the input of rsh to /dev/null using the -n option. You cannot run an interactive command (like rogue(6) or vi(1)); use rlogin(1C). Stop signals stop the local rsh process only; this is arguably wrong, but currently hard to fix for reasons too complicated to explain here. 4.2 Berkeley Distribution April 29, 1985 RSH(1C)
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