Perl lstat 函数

描述

This function performs the same tests as the stat function on FILEHANDLE or the file referred to by EXPR or $_

If the file is a symbolic link, it returns the information for the link, rather than the file it points to. Otherwise, it returns the information for the file.

语法

以下是此函数的简单语法 −

lstat FILEHANDLE

lstat EXPR

lstat

返回值

This function returns a list of 13 elements in list context, these fields are as follows −

  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

NOTE − The epoch was at 00:00 January 1, 1970 GMT.

示例

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;

❮ Perl 函数参考