在vi的命令状态下 :

:%!xxd ——将当前文本转换为16进制格式。

:%!od ——将当前文本转换为16进制格式。

:%!xxd -c 12——将当前文本转换为16进制格式,并每行显示12个字节。

:%!xxd -r ——将当前文件转换回文本格式。

xxd工具: xxd creates a hex dump of a given file or standard input. It can also convert a hex dump back to its original binary form.

od工具: Write an unambiguous representation, octal bytes by default, of FILE to standard output. With more than one FILE argument, concatenate them in the listed order to form the input.