ssh-authorize

#!/bin/bash
## Usage: ssh-authorize [user@]hostname
## 
## Create and place DSA public key on a remote ssh server.  Establishes 
## an automatic public key private key authentication.    
## 
## Your default DSA key will be created and(or) used.  Keep the default name:
## $HOME/.ssh/id_dsa.pub

if test "$1" == "help" || test  "$#" -eq 0
then
  sh $(dirname $0)/prj-usage $0
  exit 1
fi

user_host=$1
shift 1

if [[ ! $user_host =~ "@" ]]
then
  alias=$user_host
  . $(dirname $0)/prj-env $alias,user,host
  user_host=$user${user:+@}$host
fi

# We have to have a key first
sh $(dirname $0)/ssh-keygen-default

# Double test, was the key created?
[ -f $HOME/.ssh/id_dsa.pub ] && \
  # Create .ssh, and only if it was just created, set the permissions
  # Upload the local public key and append it to remote's authorized_keys file
  ssh $user_host $* mkdir -p .ssh \&\& chmod 700 .ssh\; echo "`cat $HOME/.ssh/id_dsa.pub` >> .ssh/authorized_keys && ln -s .ssh/authorized_keys .ssh/authorized_keys2" &&
    echo SSH Link established...