Perl stat 函数
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描述
stat 此函数返回一个由13个元素组成的数组,该数组给出文件的状态信息,由FILEHANDLE,EXPR或$_指定。返回的值列表如下表所示。如果在标量上下文中使用,则失败时返回0,成功时返回1。请注意,对其中某些元素的支持取决于系统。检查文档以获取完整列表。Element Description 0 Device number of file system 1 Inode number 2 File mode (type and permissions) 3 Number of (hard) links to the file 4 Numeric user ID of file.s owner 5 Numeric group ID of file.s owner 6 The device identifier (special files only) 7 File size, in bytes 8 Last access time since the epoch 9 Last modify time since the epoch 10 Inode change time (not creation time!) since the epoch 11 Preferred block size for file system I/O 12 Actual number of blocks allocated
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句法
以下是此函数的简单语法-stat FILEHANDLE stat EXPR stat
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返回值
此函数返回数组($device,$inode,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,$blksize,$blocks) -
示例
以下是显示其基本用法的示例代码-
尝试一下($device, $inode, $mode, $nlink, $uid, $gid, $rdev, $size, $atime, $mtime, $ctime, $blksize, $blocks) = stat("/etc/passwd"); print("stat() $device, $inode, $ctime\n");
执行以上代码后,将产生以下结果-stat() 2065, 5374250, 1508051555