Perl lstat 函数

描述

此函数对 FILEHANDLE 或 EXPR 或 $_ 引用的文件执行与 stat 函数相同的测试

如果文件是符号链接，它将返回链接的信息，而不是它指向的文件。否则，它返回文件的信息。

句法

以下是该函数的简单语法 -

lstat FILEHANDLE

lstat EXPR

lstat

返回值

该函数返回列表上下文中包含 13 个元素的列表，这些字段如下 -

  0 dev      device number of filesystem
  1 ino      inode number
  2 mode     file mode  (type and permissions)
  3 nlink    number of (hard) links to the file
  4 uid      numeric user ID of file's owner
  5 gid      numeric group ID of file's owner
  6 rdev     the device identifier (special files only)
  7 size     total size of file, in bytes
  8 atime    last access time in seconds since the epoch
  9 mtime    last modify time in seconds since the epoch
 10 ctime    inode change time in seconds since the epoch (*)
 11 blksize  preferred block size for file system I/O
 12 blocks   actual number of blocks allocated

注- 纪元为 1970 年 1 月 1 日 00:00 GMT。

例子

以下是显示其基本用法的示例代码 -

#!/usr/bin/perl -w

$filename = "/tmp/test.pl";
($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,$blksize,
   $blocks) = lstat($filename);
printf "File is %s,\n size is %s,\n perm %04o, mtime %s\n", $filename, $size, 
   $mode & 07777, scalar localtime $mtime;