ssh-pubkey/ssh-pubkey.sh

   1 #!/bin/bash
   2 set -e
   3 set -u
   4
   5 function main() {
   6
   7     if [ ! -d "$HOME/.ssh" ]; then
   8         mkdir -p "$HOME/.ssh/"
   9         chmod 0700 "$HOME/.ssh/"
  10     fi
  11
  12     if [ ! -f "$HOME/.ssh/config" ]; then
  13         # for the benefit of VSCode
  14         touch "$HOME/.ssh/config"
  15         chmod 0644 "$HOME/.ssh/config"
  16     fi
  17
  18     if [ ! -f "$HOME/.ssh/authorized_keys" ]; then
  19         touch "$HOME/.ssh/authorized_keys"
  20         chmod 0600 "$HOME/.ssh/authorized_keys"
  21     fi
  22
  23     if [ ! -f "$HOME/.ssh/id_rsa" ]; then
  24         ssh-keygen -b 2048 -t rsa -f "$HOME/.ssh/id_rsa" -q -N ""
  25         echo >&2 ""
  26     fi
  27
  28     if [ ! -f "$HOME/.ssh/id_rsa.pub" ]; then
  29         ssh-keygen -y -f "$HOME/.ssh/id_rsa" > "$HOME/.ssh/id_rsa.pub"
  30         echo >&2 ""
  31     fi
  32
  33     # TODO use the comment (if any) for the name of the file
  34     echo >&2 ""
  35     #shellcheck disable=SC2088
  36     echo >&2 "~/Downloads/id_rsa.$(whoami).pub":
  37     echo >&2 ""
  38     rm -f "$HOME/Downloads/id_rsa.$(whoami).pub"
  39     cp -r "$HOME/.ssh/id_rsa.pub" "$HOME/Downloads/id_rsa.$(whoami).pub"
  40     cat "$HOME/Downloads/id_rsa.$(whoami).pub"
  41     echo >&2 ""
  42 }
  43
  44 main