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Full Discussion: Create a list of commands in a central location, and then run them all remotely through a ssh here
Top Forums Shell Programming and Scripting Create a list of commands in a central location, and then run them all remotely through a ssh here Post 302455754 by DeCoTwc on Wednesday 22nd of September 2010 10:51:19 AM
Old 09-22-2010
Create a list of commands in a central location, and then run them all remotely through a ssh here
I'm trying to write a script that in the end will from one central location hop to a bunch of servers and then run a series of ping tests. The thing is, the list of devices that needs to be pinged is going to be different for each server. So what I want to do is be able to do is read through the list of servers at the central location, set up the logic to figure out what machines it needs to ping, and then execute a single ssh session with a here statement. The issue I have is, I'm not sure how to create a list of commands, and then run through them.

So what I have right now is:

Code:
#!/bin/bash

head -1 blade | while read i; do
    i=($i)
    case "${i%b*}" in
        r01)
                        #LOGIC TO DETERMINE WHAT SERVERS NEED TO BE PINGED GOES HERE
            ssh -T r01b01  <<EOF
                        #ACTUAL COMMANDS GO HERE INSTEAD OF SINGLE PING COMMAND BELOW
ping -q -c 1 -w 1 10.250.19.5 > /dev/null && echo "success" || echo "failed"
EOF
        ;;
        esac
    done

Doing the logic is fine, I can hack my way through that. What I can't figure out is how to pass a list of commands based on that logic through a single ssh connection.

Any ideas?
 

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LEARN ABOUT DEBIAN

bssh

bssh/bvnc/bshell(1)					      General Commands Manual					       bssh/bvnc/bshell(1)

NAME

       bssh/bvnc/bshell - Browse for SSH/VNC servers on the local network

SYNOPSIS

       bssh

       bvnc

       bshell

DESCRIPTION

       bssh/bvnc/bshell  browses  for  SSH/VNC	servers  on  the  local  network, shows them in a GUI for the user to select one and finally calls
       ssh/vncviewer after a selection was made.

       If the binary is called as bssh only ssh servers will be shown. If the binary is called as bvnc only VNC servers  will  be  shown.  If  the
       binary is called as bshell both VNC and SSH servers are shown.

OPTIONS

       -s | --ssh
	      Browse for SSH servers (and only SSH servers) regardless under which name the binary is called.

       -v | --vnc
	      Browse for VNC servers (and only VNC servers) regardless under which name the binary is called.

       -S | --shell
	      Browse for both VNC and SSH servers regardless under which name the binary is called.

       -d | --domain= DOMAIN
	      Browse in the specified domain. If omitted bssh/bvnc/bshell will browse in the default browsing domain (usually .local)

       -h | --help
	      Show help.

AUTHORS

       The Avahi Developers <avahi (at) lists (dot) freedesktop (dot) org>; Avahi is available from http://avahi.org/

SEE ALSO

       avahi-browse(1), ssh(1), vncviewer(1)

COMMENTS

       This man page was written using xml2man(1) by Oliver Kurth.

Manuals 							       User						       bssh/bvnc/bshell(1)
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