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Top Forums Shell Programming and Scripting Data pipe lost when using ssh in shell script Post 302594552 by siavash on Tuesday 31st of January 2012 03:22:03 PM
Old 01-31-2012
Question Data pipe lost when using ssh in shell script

Hi,

I want to do SSH on many different machines and then run some commands on them. A binary application randomly generates IP addresses and my script will take care of doing SSH.

Code:
$ ./IPGen.exe | ./myScript.sh

my script looks like this:

Code:
while read line; do
      result1=$(ssh $line 'LinuxCommand1') &
      result2=$(ssh $line 'LinuxCommand2') &
      result3=$(ssh $line 'LinuxCommand3') &
      wait;
      echo "$result1 - $result2 - $result3";
done

The problems are:
1- The while loop ends after first round!!!
2- All variables (result1, result2, result3) are empty.



I tried to search the forum before posting but I really didn't know what should I search for?!
 

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SSH-ARGV0(1)                                                BSD General Commands Manual                                               SSH-ARGV0(1)

NAME
ssh-argv0 -- replaces the old ssh command-name as hostname handling SYNOPSIS
hostname | user@hostname [-l login_name] [command] hostname | user@hostname [-afgknqstvxACNTX1246] [-b bind_address] [-c cipher_spec] [-e escape_char] [-i identity_file] [-l login_name] [-m mac_spec] [-o option] [-p port] [-F configfile] [-L port:host:hostport] [-R port:host:hostport] [-D port] [command] DESCRIPTION
ssh-argv0 replaces the old ssh command-name as hostname handling. If you link to this script with a hostname then executing the link is equivalent to having executed ssh with that hostname as an argument. All other arguments are passed to ssh and will be processed normally. OPTIONS
See ssh(1). FILES
See ssh(1). AUTHORS
OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH. Markus Friedl contributed the support for SSH protocol versions 1.5 and 2.0. Jonathan Amery wrote this ssh-argv0 script and the associated documentation. SEE ALSO
ssh(1) Debian Project September 7, 2001 Debian Project
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