Sync user home between two remote servers.

sync_home.sh

#!/bin/bash
# server1 and server2 are defined in ~/.ssh/config

users=$(ssh server1 "ls /home")
for user in ${users}; do
  user_home_found=$(ssh server2 "ls /home" | grep "${user}")
  if [[ -n "${user_home_found}" ]]; then
    echo "user home already created: ${user}"
    continue
  fi

  user_found=$(ssh server2 "cat /etc/passwd | grep ${user}")
  if [[ -z "${user_found}" ]]; then
    echo "user not found: ${user}"
    continue
  fi
  
  echo "create user home: ${user}"
  ssh server2 "mkdir -p /home/${user}"

  echo "copy user home: ${user}"
  scp -3r server1:/home/${user}/.ssh server2:/home/${user}/.ssh
  
  echo "chown user home: ${user}"
  ssh server2 "chown -R ${user}:${user} /home/${user}"
done