Need help with multiple "if" for ssh Post: 303005987

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Top Forums Shell Programming and Scripting Need help with multiple "if" for ssh Post 303005987 by jaapar on Wednesday 25th of October 2017 01:54:39 PM

10-25-2017

Registered User

Need help with multiple "if" for ssh

Hello Folks,

Good day,

I have a little script here where i connect to my servers using below.

Code:

# s <hostname>

Below is the sample script i had written to simplify this step successfully.

Code:

jump1 ~ $ s abc
Last login: Wed Oct 25 11:23:28 2017 from jump1
[root@abc ~]#

However i did not get the expected output as below when the script cannot find the hostname with both .XX.com and XXX.com.

echo "Could not resolved $server, please check hostname"

Can you assist to check what went wrong here?

Thank you so much.

Code:

#!/bin/bash
#

hostname=$1

server=`echo $hostname | tr '[A-Z]' '[a-z]'`

ping -q -c 1 $server.XX.com &>/dev/null

if [ "$?" = 0 ];
then
        ssh -q -o StrictHostKeyChecking=no -l root $server.XX.com
else
        if [ "$?" -ne "0" ];
        then
                ssh -q -o StrictHostKeyChecking=no -l root $server.XXX.com
        else
        echo "Could not resolved $server, please check hostname"
        fi
fi

Last edited by jaapar; 10-25-2017 at 03:41 PM..

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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
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SEE ALSO

     ssh(1)

Debian Project                                                   September 7, 2001                                                  Debian Project

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