Bash while loop iterates only once whenever body contains ssh [duplicate]

Answer 1

If the file is white space separated

host1 user password
host2 user password

then a simple read loop:

while read -r Server User Password
do
   /usr/bin/ssh -n $User@$Server touch /home/user/file_name.txt
done 

But you will be prompted for the password. You cannot pass the "Password" to ssh so I'd suggest storing passwordless ssh-keys and placing them on each host for the user you are connecting as. If you are running this command from a script you can ssh as these users on each host by placing your public key in the user's ~/.ssh/authorized_keys (or authorized_keys2) file. If you have the ssh-copy-id command you could do this by:

ssh-copy-id user@hostname 

which would copy YOUR ssh-key to their authorized_keys file so you could then ssh as them. This is assuming you have permission but then again you have their password so what permission do you need?