验证签名时如何找到完整的GPG指纹？

当我右键单击签名文件，然后单击“更多GpgEX选项->验证”时，它表示有效，显示我的电子邮件地址和指纹的最后8个十六进制数字。右键单击，然后GPGshell->“解密... /验证/导入”将给出相同的结果。如果我想对它进行实际验证，则需要所有40个十六进制数字。验证时如何查看某人指纹的所有40位数字？

如何在终端中执行此操作（命令提示符）：

gpg --fingerprint <user_id>

从gpg的手册页：

  --fingerprint
          List all keys (or the specified ones) along with  their  finger‐
          prints.  This  is  the  same  output as --list-keys but with the
          additional output of a line with the fingerprint.  May  also  be
          combined  with  --list-sigs or --check-sigs.  If this command is
          given twice, the fingerprints of all secondary keys  are  listed
          too.