Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Assistance to connect to servers via ssh once and collect various commands into separate variables
Top Forums UNIX for Beginners Questions & Answers Assistance to connect to servers via ssh once and collect various commands into separate variables Post 303038915 by greavette on Tuesday 17th of September 2019 12:14:57 AM
Old 09-17-2019
Thank you @RudiC for the reply! Very much appreciate you taking the time to review my post. I will also look into using the case statement to clean up the code readability!

For this code suggestion, I would like to clarify a few things.

Could I still use sshpass when connecting and could I use the $InputIP from the input file? So would your code suggestion look like the following:

Code:
IFS=$'\t' read FLAVOUR HOSTNAME IPADDRESS ACTIVE_KERNEL INACTIVE_KERNEL UPTIME <<- EOFREAD
        $(sshpass -p '*******' ssh -qno StrictHostKeyChecking=no -o ConnectTimeout=1 root@$InputIP <<- EOFSSH | tr $'\n' $'\t'

Secondly...each command instruction, I would like to assign a variable to each. Would I be able to do that as follows based on your code suggestion:

Code:
        FLAVOUR=$(cat /etc/redhat-release 2>/dev/null || lsb_release -a 2>/dev/null | grep Description | cut -f2)
        HOSTNAME=$(hostname)
        IPADDRESS=$(hostname -I)
        ACTIVE_KERNEL=$(uname -r)
        INACTIVE_KERNEL=$(rpm -qa | grep '^kernel-[0-9]' |grep -vE `uname -r`)
        UPTIME=$(uptime | cut -d "," -f1)

The reason I would like to assign variables to each result is so that I may place these into the final report where necessary.

Thanks!
Last edited by greavette; 09-17-2019 at 01:25 AM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

need script to connect sftp servers

Dear friends, i need to connect sftp server from my home directory using script . Please can anyone help me on this. (1 Reply)
Discussion started by: kittusri9
1 Replies

2. Shell Programming and Scripting

Need assistance with appending strings using sed and variables

HI, Can't seem to find anything on the forums to fix this. I have a file, one line within this will not have a specific string at the end. I have the string, but need to append it to the specific line which has it missing. I need to use a variable for this, $string - I am using double... (13 Replies)
Discussion started by: mandriver
13 Replies

3. Shell Programming and Scripting

Cant separate variables

Hey guys, new problem....im not being able to seperate variables. the code runs like this... OPTIONS=$(awk '{print $2}' /etc/fstab} a=$(zenity --list --text "Mount points selection" --radiolist --column "choice" --column "mountpt" FALSE $OPTIONS); echo $a Note: the result i get is that... (2 Replies)
Discussion started by: dplate07
2 Replies

4. Shell Programming and Scripting

Send Remote Commands via SSH with variables

Hi there I found the Command to send commands to other servers like: sv01> ssh user@sv02 'ps -ef' But I cant use Variables from a script i want to execute on another server like: sv01> ssh user@sv02 'cd $SCRIPTHOME' although the variable is set on sv01. How can I run commands on sv02 with... (2 Replies)
Discussion started by: DarkSwiss
2 Replies

5. UNIX for Dummies Questions & Answers

need assistance on Calling DB user from separate file in Shell script

Hi All, I need to execute a SQL via shell script and i am connecting to Oracle DB by this way $USERNAME1/$PASSWORD1@$STRING1 and i need to get username, password and string from someother file stored in the Unix Directory. $Username, $Password and $String is stored in File A in Path A and i want... (1 Reply)
Discussion started by: sathish.tn
1 Replies

6. Shell Programming and Scripting

connect to multiple servers using SSH and execute commands

Requirement: Run a shell script with below inputs file name checksum path the script should go to multiple servers (around 35) and verify the input cksum and if there is a mismatch display a simple message to the user that cksum verification failed. host details, user id /... (1 Reply)
Discussion started by: amicableperson
1 Replies

7. UNIX for Advanced & Expert Users

Collect files from different servers to a single server and append them

Hi, I have script1.sh on 3 servers. I want to collect output report generated by them to a single server and append all the reports. Please tell me how can i do this? (2 Replies)
Discussion started by: pratikm23
2 Replies

8. Shell Programming and Scripting

Shell script to connect to multiple ssh servers

Hello, I have access to several linux servers (mostly centos based) located in a DC in another country. from day to day I need to login to each of them to do some work (they dont have gui/window manager installed, I work only from console), or even to just do a check like df -h for disc usage.... (3 Replies)
Discussion started by: MaRiOsGR
3 Replies

9. Shell Programming and Scripting

Find active SSH servers w/ ssh keys on LAN

Hi, I am trying to complete my bash script in order to find which SSH servers on LAN are still active with the ssh keys, but i am frozen at this step: #!/bin/bash # LAN SSH KEYS DISCOVERY SCRIPT </etc/passwd \ grep /bin/bash | cut -d: -f6 | sudo xargs -i -- sh -c ' && cat... (11 Replies)
Discussion started by: syrius
11 Replies

10. UNIX for Advanced & Expert Users

Connect direct - SFTP - List of servers that I can connect

Greetings Experts, I am working for a bank client and have a question on connect-direct and SFTP. We are using Linux RedHat servers. We use connect-direct to transfer (NDM) files from one server to another server. At times, we manually transfer the files using SFTP from one server to another... (2 Replies)
Discussion started by: chill3chee
2 Replies

LEARN ABOUT PLAN9

uptime

UPTIME(1)							   User Commands							 UPTIME(1)

NAME

       uptime - Tell how long the system has been running.

SYNOPSIS

       uptime [options]

DESCRIPTION

       uptime  gives  a one line display of the following information.	The current time, how long the system has been running, how many users are
       currently logged on, and the system load averages for the past 1, 5, and 15 minutes.

       This is the same information contained in the header line displayed by w(1).

       System load averages is the average number of processes that are either in a runnable or uninterruptable state.	A process  in  a  runnable
       state is either using the CPU or waiting to use the CPU.  A process in uninterruptable state is waiting for some I/O access, eg waiting for
       disk.  The averages are taken over the three time intervals.  Load averages are not normalized for the number of CPUs in  a  system,  so  a
       load average of 1 means a single CPU system is loaded all the time while on a 4 CPU system it means it was idle 75% of the time.

OPTIONS

       -p, --pretty
	      show uptime in pretty format

       -h, --help
	      display this help text

       -s, --since
	      system up since, in yyyy-mm-dd HH:MM:SS format

       -V, --version
	      display version information and exit

FILES

       /var/run/utmp
	      information about who is currently logged on

       /proc  process information

AUTHORS

       uptime was written by Larry Greenfield <greenfie@gauss.rutgers.edu> and Michael K. Johnson <johnsonm@sunsite.unc.edu>

SEE ALSO

       ps(1), top(1), utmp(5), w(1)

REPORTING BUGS

       Please send bug reports to <procps@freelists.org>

procps-ng							   December 2012							 UPTIME(1)
All times are GMT -4. The time now is 09:28 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy