.. / file

file-read

从文件中读取数据。

• Each input line is treated as a filename for the file command and the output is corrupted by a suffix : followed by the result or the error of the operation, so this may not be suitable for binary files.

  LFILE=要读取的文件路径
  file -f $LFILE
  

  Each line is corrupted by a prefix string and wrapped inside quotes, so this may not be suitable for binary files. If a line in the target file begins with a #, it will not be printed as these lines are parsed as comments. It can also be provided with a directory and will read each file in the directory.

  LFILE=要读取的文件路径
  file -m $LFILE
  

suid

suid是一种授予文件的权限类型，它允许用户使用者以文件所有者的权限来执行文件。

• Each input line is treated as a filename for the file command and the output is corrupted by a suffix : followed by the result or the error of the operation, so this may not be suitable for binary files.

  LFILE=要读取的文件路径
  ./file -f $LFILE
  

sudo

如果二进制文件被 sudo 允许以超级用户身份运行，可能被用于访问文件系统、提升或维持特权访问。

• Each input line is treated as a filename for the file command and the output is corrupted by a suffix : followed by the result or the error of the operation, so this may not be suitable for binary files.

  LFILE=要读取的文件路径
  sudo file -f $LFILE