来自 fs.Stats 类的 Node.js stats.nlink 属性
stats.nlink 属性是 fs.Stats 类的内置应用程序编程接口,用于获取文件的硬链接数。
句法:
stats.nlink;
返回值:它返回一个数字或 BigInt 值,表示文件的硬链接数。
以下示例说明了 Node.js 中 stats.nlink 属性的使用:
示例 1:
// Node.js program to demonstrate the
// stats.nlink property
// Accessing fs module
const fs = require('fs');
// Calling fs.Stats stats.nlink for
// files using stat
fs.stat('./filename.txt', (err, stats) => {
if (err) throw err;
console.log("using stat: number of "
+ "hard-links for the file is "
+ stats.nlink);
});
// Using lstat
fs.lstat('./filename.txt', (err, stats) => {
if (err) throw err;
console.log("using lstat: number of "
+ "hard-links for the file is "
+ stats.nlink);
});
// For directories
// Using stat
fs.stat('./', (err, stats) => {
if (err) throw err;
console.log("using stat: number of "
+ "hard-links for the file is "
+ stats.nlink);
});
// Using lstat
fs.lstat('./', (err, stats) => {
if (err) throw err;
console.log("using lstat: number of "
+ "hard-links for the file is "
+ stats.nlink);
});
输出:
using stat: number of hard-links for the file is 1
using lstat: number of hard-links for the file is 1
using stat: number of hard-links for the file is 1
using lstat: number of hard-links for the file is 1
示例 2:
// Node.js program to demonstrate the
// stats.nlink property
// Accessing fs module
const fs = require('fs').promises;
// Calling fs.Stats stats.nlink
(async () => {
const stats = await fs.stat('./filename.txt');
console.log("using stat synchronous: number "
+ "of hard-links for the file is "
+ stats.nlink);
})().catch(console.error)
输出:
(node:13780) ExperimentalWarning: The fs.promises API
is experimental
using stat synchronous: number of hard-links for the file is 1
注意:以上程序将通过使用node filename.js
命令编译运行,并正确使用 file_path。
参考: https://nodejs.org/api/fs.html#fs_stats_nlink