mjhjmtu

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 '
 [ -e "$1" ] && cat "$1"
' -- /.ssh/known_hosts |
cut -d' ' -f1 |
tr ',' 'n' |
sed '
 /^[/
 s/[(.*)]:(.*)/1 2/;
 t;
 ;
 s/$/ 22/;
' |
sort -u |
xargs -l1 -- sh -c '
 if echo "~" | nc -q1 -w3 "$1" "$2" | grep -q "^SSH"; then
 echo "#### SUCCESS $1 $2";
 else
 echo "#### ERROR $1 $2";
 fi
' --

# TIME TO TEST WHICH SSH servers are still active with the SSH keys
# AND THIS IS WHERE I AM FROZEN...
# Would love to have bash script that could
# ssh -l $users_that_have_/bin/bash -i $ssh_keys $ssh_servers
# Would also be very nice if it could save active
# SSH servers with the valid keys in output.txt in the format
# username:local-IP:/path/to/SSH_key

there is also another one simpler to read (but with some temp files getting created):

#!/bin/bash

# LAN SSH KEYS DISCOVERY SCRIPT
# TRYING TO FIND THOSE SSH KEYS NOW

cat /etc/passwd | grep /bin/bash > bash_users
cat bash_users | cut -d ":" -f 6 > cutted.bash_users_home_dir
for bash_users in $(cat cutted.bash_users_home_dir)
do
ls -al $bash_users/.ssh/*id_* >> ssh-keys.txt
done

# DISCOVERING THE KNOWN_HOSTS NOW

for known_hosts in $(cat cutted.bash_users_home_dir)
do
cat $bash_users/.ssh/known_hosts | awk 'print $1' | sort -u >> 
hosts_known.txt
sleep 2
done
hosts_known=$(wc -l hosts_known.txt)
echo "We have $hosts_known known hosts that could be still active via SSH 
keys"

# TIME TO TEST WHICH SSH servers are still active with the SSH keys
# AND THIS IS WHERE I AM FROZEN...
# Would love to have bash script that could
# ssh -l $users_that_have_/bin/bash -i $ssh_keys $ssh_servers
# Would also be very nice if it could save active
# SSH servers with the valid keys in output.txt in the format
# username:local-IP:/path/to/SSH_key

So right now, as stated in the bash script above, I am trying to find how to do some sort of a "ssh -l $users_that_have_/bin/bash -i $ssh_keys $ssh_servers" and dump the positive logins in an output.txt file in the following format "username:local-IP:/path/to/SSH_key"

Please feel very comfortable to edit/modify the bash script above if it can serve better the goals described.

Any help would be very appreciated,

Thanks