by iSSHtool bash script, Network Engineers can connect to network devices simply and save credentials in Linux Os.

isshtool.sh

#!/bin/bash
# Name: SSH Client for Network Engineers
# Author: Saman Jalilian 
# Mail: ohumeagle@gmail.com
# introduction: This simple script helps you to connect to your network devices with SSH and let you save your passwords as an enrypted file.
# - the session log will be generated day by day in the root directory which scrip runs.  
# Usage: put your device information and credentials in root directory file with .conf extention (you can have multiple file) in below format and then encrypt it 
# With gpg tool, so the final encrypted extension should be like this *.conf.pgp
# use this command to encrypt your file: gpg --yes --batch --passphrase=123 -c testfile.conf
# Format:
# Number,Device_name,IP_address,Username,Password
# Sample Format:
# 1,SW-HA-D1,192.168.0.1,username,P@ssw0rd
# 2,R1-DE-CE,192.168.0.2,username,P@ssw0rd
# 3,R2-DC-DC,192.168.0.3,username,P@ssw0rd
# 4,FW-HJ-SD,192.168.10.4,username,P@ssw0rd

# Tested on Ubuntu 18.04

trap "rm *.conf 2> /dev/null ;rm temp_file 2> /dev/null ; exit" 2
clear
########### Printing Banner ###############
echo "#################################################################"
echo "iSSH (interactive SSH tool) for Network Engineers"
echo "Author:Saman Jalilian"
echo "Mail:ohumeagle@gmail.com"
echo "#################################################################"
echo ""
########### End of Printing Banner ########

########### Funding conf.pgp files in . directory ###############
ls -1 | grep .conf.gpg > temp_file
input=(`cat "temp_file"`)
while IFS= read -r line ; do
	files_name+=($line)
done < "temp_file"
########### End of Funding conf.pgp files in . directory ###############

########### Printing Menu and save inventory files in dictionary ###############
s_id=0
declare -A dic
for i in "${files_name[@]}"; do
        s_id=`echo $(( $s_id+1 ))`
        dic[ $s_id ]=$i
        echo "$s_id --> ${dic[ $s_id ]}"
done
########### End of Printing Menu and save inventory files in dictionary ###############


echo ""
file_id=0
x=${#dic[@]} #getting total length of dictionary 
var1=0  #loop control variable

while [[ var1 -eq 0 ]] ; do
	read -p "Enter the Inventory file numeber: " file_id
	if [[ file_id -le x ]]; then
		 var1=1
	else
		 echo "Entered out of range"
	fi
done

f_id=1
while [[ f_id -ne 0 ]] ; do
	read -s -p "Enter the Passphrase: " passid
	gpg --yes --batch --passphrase=$passid ${dic[ $file_id ]}
	f_id=`echo $?`
done

conf_file_gpg=${dic[ $file_id ]}
conf_file_wogpg=${conf_file_gpg%.gpg}

#sleep 1
#Reading file 
device_sample=(`cat "$conf_file_wogpg"`)

#Printing the colums except password 
echo ""
awk -F "," '{print $1" --> "$2" " $3" "}' $conf_file_wogpg


#Puting lines in dictionary 
declare -A devices
d_id=0
for i in "${device_sample[@]}"; do
	d_id=`echo $(( $d_id+1 ))`
	devices[ $d_id ]=$i
done

#getting input from user
echo ""
read -p "Enter the desired device numeber: " var1

var2=${devices[ $var1 ]}
IFS=',' read -r -a array <<< "$var2"

Pass=${array[4]}
User=${array[3]}
Host=${array[2]}
clear
date=$(date +%m-%d-%y)
########### connecting to device with SSH ###############
echo "******* Connecting to ${array[1]} ..."
sshpass -p $Pass ssh -o ConnectTimeout=5 -oStrictHostKeyChecking=no $User@$Host | tee -a log_file_$date.log
echo "############################# Starting Another Session ##################################" >> log_file_$date.log
error=`echo $?`
if [[ $error -eq 255 ]]; then
	echo "######### Device is unreachable ##########"
	echo "##########################################"
else
	echo "******* You are disconnected from ${array[1]}"
fi


# Removing Unused files
rm *.conf
rm temp_file