fs

node.js modify file data stream?

由 蓝咒 提交于 2020-06-11 20:07:38
问题 I need to copy one large data file to another destination with some modifications. fs.readFile and fs.writeFile are very slow. I need to read line by line, modify and write to new file. I found something like this: fs.stat(sourceFile, function(err, stat){ var filesize = stat.size; var readStream = fs.createReadStream(sourceFile); // HERE I want do some modifications with bytes readStream.pipe(fs.createWriteStream(destFile)); }) But how to make modifications ? I tried to get data with data

iisnode not able to access file present in network file path

由 拈花ヽ惹草 提交于 2020-05-17 08:13:00
问题 I am node app through iisnode. I can access file present in network path but when the application tries to access the file, it complains ' File doesn't exist'. I tried adding IIS_IUSRS user group to have access to iisnode www directory in my local machine. I changed the username(from application pool) of the application to which I have permission(R/W) on the network path. Restarted my machine. But still problem persist. Can someone help me if there is issue between iisnode and network file

iisnode not able to access file present in network file path

由 ﹥＞﹥吖頭↗ 提交于 2020-05-17 08:12:06
问题 I am node app through iisnode. I can access file present in network path but when the application tries to access the file, it complains ' File doesn't exist'. I tried adding IIS_IUSRS user group to have access to iisnode www directory in my local machine. I changed the username(from application pool) of the application to which I have permission(R/W) on the network path. Restarted my machine. But still problem persist. Can someone help me if there is issue between iisnode and network file

iisnode not able to access file present in network file path

由 你。 提交于 2020-05-17 08:11:35
问题 I am node app through iisnode. I can access file present in network path but when the application tries to access the file, it complains ' File doesn't exist'. I tried adding IIS_IUSRS user group to have access to iisnode www directory in my local machine. I changed the username(from application pool) of the application to which I have permission(R/W) on the network path. Restarted my machine. But still problem persist. Can someone help me if there is issue between iisnode and network file

iisnode not able to access file present in network file path

由 夙愿已清 提交于 2020-05-17 08:10:41
问题 I am node app through iisnode. I can access file present in network path but when the application tries to access the file, it complains ' File doesn't exist'. I tried adding IIS_IUSRS user group to have access to iisnode www directory in my local machine. I changed the username(from application pool) of the application to which I have permission(R/W) on the network path. Restarted my machine. But still problem persist. Can someone help me if there is issue between iisnode and network file

Not works fs.readFile in node js

由 点点圈 提交于 2020-03-18 03:59:53
问题 I have: fs.readFile('../services/Prescipcion.xml', "utf8", function (err, data) { console.log("err->", err); console.log("data", data); }); And it logs: err-> { [Error: ENOENT: no such file or directory, open '../services/Prescipcion.xml'] errno: -2, code: 'ENOENT', syscall: 'open', path: '../services/Prescipcion.xml' } I don't understand why this happens. 回答1: It worked for me var fs = require("fs"); const readFIle = path => { fs.readFile(__dirname + path, "utf8", (err, data) => { if (err) {

Not works fs.readFile in node js

由 柔情痞子 提交于 2020-03-18 03:56:08
问题 I have: fs.readFile('../services/Prescipcion.xml', "utf8", function (err, data) { console.log("err->", err); console.log("data", data); }); And it logs: err-> { [Error: ENOENT: no such file or directory, open '../services/Prescipcion.xml'] errno: -2, code: 'ENOENT', syscall: 'open', path: '../services/Prescipcion.xml' } I don't understand why this happens. 回答1: It worked for me var fs = require("fs"); const readFIle = path => { fs.readFile(__dirname + path, "utf8", (err, data) => { if (err) {

ubuntu 下mount -a 提示文件系统错误“mount: wrong fs type”的解决

由 折月煮酒 提交于 2020-03-05 15:26:15
现象： root@db-12:~# mount -a mount: wrong fs type, bad option, bad superblock on 172.26.183.227:/export/tilestorage, missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.<type> helper program) In some cases useful info is found in syslog - try dmesg | tail or so 2.解决： apt-get install nfs-common。增加系统对nfs文件系统的支持 来源： oschina 链接： https://my.oschina.net/u/913095/blog/263623

获取文件名称

由 僤鯓⒐⒋嵵緔 提交于 2020-02-29 00:00:35
public static void main(String[] args) { // TODO Auto-generated method stub File f = new File("D://360压缩"); mothod(f); } public static void mothod(File f){ if (f.isFile() || !f.exists()){ return; } File[] files = f.listFiles(); for(File Fs : files){ if (Fs.isFile()){ System.out.println("文件："+Fs.getName()); }else{ System.out.println("目录:"+Fs.getName()); mothod(Fs); } } } 来源： https://www.cnblogs.com/rzkwz/p/12381067.html

node 文件操作工具库 fs-extra

由 你说的曾经没有我的故事 提交于 2020-02-26 05:01:31
github https://github.com/jprichardson/node-fs-extra promise封装版, 比之前的回调函数更加顺手 const fs = require('fs-extra') // Async with promises: fs.copy('/tmp/myfile', '/tmp/mynewfile') .then(() => console.log('success!')) .catch(err => console.error(err)) // Async with callbacks: fs.copy('/tmp/myfile', '/tmp/mynewfile', err => { if (err) return console.error(err) console.log('success!') }) // Sync: try { fs.copySync('/tmp/myfile', '/tmp/mynewfile') console.log('success!') } catch (err) { console.error(err) } // Async/Await: async function copyFiles () { try { await fs.copy('/tmp/myfile', '/tmp/mynewfile'
订阅 fs