pgpool-II version 4.4.18 (nurikoboshi),
  password encryption utility for Pgpool

Usage:
  /usr/bin/pg_enc [OPTIONS] <PASSWORD>
  -k, --key-file=KEY_FILE
                       Set the path to the encryption key file.
                       Default: USER-HOME-DIR/.pgpoolkey
                       Can be overridden by the PGPOOLKEYFILE environment variable.
  -K, --enc-key=ENCRYPTION_KEY
                       Encryption key to be used for encrypting database passwords.
  -f, --config-file=CONFIG_FILE
                       Specifies the pgpool.conf file.
  -i, --input-file=INPUT-FILE
                       Specify file containing username and password pairs.
  -p, --prompt         Prompt for database password using standard input.
  -P, --prompt-for-key Prompt for encryption key using standard input.
  -m, --update-pass    Create encrypted password entry in the pool_passwd file.
  -u, --username       The username for the pool_password entry.
  -h, --help           Print this help.