installation fails because of script inside `authorized_keys` about nixos-infect HOT 4 CLOSED

for trypath in /root/authorized_keys /root/.ssh/authorized_keys; do [[ -r "$trypath" ]] && keys=$(sed -E 's/.*(ssh-[^[:space:]]+)[[:space:]]+([[:alnum:]]+)[[:space:]]*.*/\1 \2/') && break; done

AUTHORIZED_KEYS FILE FORMAT
     AuthorizedKeysFile specifies the files containing public keys for public
     key authentication; if this option is not specified, the default is
     ~/.ssh/authorized_keys and ~/.ssh/authorized_keys2.  Each line of the file
     contains one key (empty lines and lines starting with a ‘#’ are ignored as
     comments).  Public keys consist of the following space-separated fields:
     options, keytype, base64-encoded key, comment.  The options field is
     optional.  The keytype is “ecdsa-sha2-nistp256”, “ecdsa-sha2-nistp384”,
     “ecdsa-sha2-nistp521”, “ssh-ed25519”, “ssh-dss” or “ssh-rsa”; the comment
     field is not used for anything (but may be convenient for the user to
     identify the key).

for trypath in /root/authorized_keys /root/.ssh/authorized_keys; do [[ -r "$trypath" ]] && keys=$(sed -E 's/^.*((ssh|ecdsa)-[^[:space:]]+)[[:space:]]+([^[:space:]]+)([[:space:]]*.*)$/\1 \3\4/' "$trypath") && break; done

local -a keys
(cat /root/{,.ssh/}authorized_keys{,2} || true) | while read line; do
  set -- $line
  [[ "$#" -eq 4 ]] && shift
  keys+=("$@")
done
# later use "${keys[@]}" to include into .nix