Setup Passless Login For SSH

setup_passless_login.sh

#!/bin/tcsh

# validate command-line args
if ($# != 2) then
    echo "Example usage: $0 ssh.codeisart.com 22"
    exit 1
endif

# set script variables
set remotehost = $1
set port       = $2

# start in home dir
cd ~
pwd

# create key?
if (! -f ~/.ssh/id_rsa.pub) then
    echo "->> Creating RSA Key <<-"
    ssh-keygen -b 4096
endif

# log into remote server and update ssh key
echo "->> Sending Key to ${remotehost}:${port} <<-"
ssh ${remotehost} -p ${port} mkdir .ssh 
ssh ${remotehost} -p ${port} chmod 700 .ssh 
ssh ${remotehost} -p ${port} cat \>\> .ssh/authorized_keys < ~/.ssh/id_rsa.pub 
ssh ${remotehost} -p ${port} chmod 644 .ssh/authorized_keys 
ssh ${remotehost} -p ${port} uname -a