grep --byte-offset 不给我字节偏移量？

Question

我跑

grep -b --byte-offset 'EXTH' Agent_of_Change.mobi

但我只得到“二进制文件 Agent_of_Change.mobi 匹配”。我怎样才能得到字节偏移量？

Answer 1

grep默认情况下，只返回二进制文件的匹配项。

您需要告诉grep将二进制文件视为文本。

grep -a -b 'EXTH' Agent_of_Change.mobi

但是，grep警告您可能的后果：

          option.  If TYPE is text, grep processes a binary file as if  it
          were  text;  this is equivalent to the -a option.  Warning: grep
          --binary-files=text might output binary garbage, which can  have
          nasty  side  effects  if  the  output  is  a terminal and if the
          terminal driver interprets some of it as commands.