send_ssh

#!/usr/bin/bash
# gen ssh keypair and send to server
# https://devhints.io/bash
# https://linuxconfig.org/bash-scripting-cheat-sheet

set -e

SSH_ADDRESS=""
COMMENT=""
KEY_DIR="$HOME/.ssh/"
KEY_FNAME="id_ed25519"
SUFFIX=""
PASSWORD=""

read -p "SSH address (USER@<ip>): " SSH_ADDRESS
read -p "Key file suffix: " SUFFIX
read -p "Comment: " COMMENT
read -p "Change key path [y/N]? " CHANGE_KEY_PATH

if [[ $CHANGE_KEY_PATH == "y" ]]; then
  read -p "\nPath: " KEY_PATH

  KEY_FNAME=${KEY_PATH##*/}
  KEY_DIR=${KEY_PATH%$KEY_FNAME}
fi

read -p "Use passphrase [y/N]? " USE_PW

if [[ $USE_PW == "y" ]]; then
  read -p "Enter password: " -s PASSWORD
fi

ssh-keygen -t ed25519 -f "$KEY_DIR$KEY_FNAME""_$SUFFIX" -C "$COMMENT" -N "$PASSWORD"
ssh-copy-id -i "$KEY_DIR$KEY_FNAME""_$SUFFIX.pub" "$SSH_ADDRESS"