filesystems

问题 I want update file in zip arhive with nodejs . For example i have zip file with two files: a.zip |-a.txt |-b.txt I use archiver: var archiver = require('archiver'); var archive = archiver('zip', {}); archive.pipe(fs.createWriteStream('./a.zip')); archive.append(fs.createReadStream('./c.txt'), { name: 't.txt' }); archive.finalize(); But I have a problem, my archive is completely overwritten. As a result, I get: a.zip |-t.txt If I use: archive.file('./a.txt', { name: 't.txt' }); the result

问题 In boost filesystem there is a function create_directory which creates a directory. How do I create a file? I could create one by defining a boost::filesystem::ofstream object but that would also open the file, so I would have to call close on it before I could do other stuff to it, like renaming or deleting. Is this the only way? 回答1: Boost Filesystem V3 doesn't provide a touch(1) function; Even touch will creat+close a file, just look at the output of strace : open("/tmp/q", O_WRONLY|O

问题 I want to check whether a given user has access to a given folder - by checking if they have "Modify" access assigned to them. I thought that the PS for that would be: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} |?{$_.filesystemrights.value -contains "Modify"} But the final part of that isn't working - I get back no result. But I know that they have Modify access - if I put in: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} | select

问题 I want to check whether a given user has access to a given folder - by checking if they have "Modify" access assigned to them. I thought that the PS for that would be: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} |?{$_.filesystemrights.value -contains "Modify"} But the final part of that isn't working - I get back no result. But I know that they have Modify access - if I put in: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} | select

问题 I want to check whether a given user has access to a given folder - by checking if they have "Modify" access assigned to them. I thought that the PS for that would be: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} |?{$_.filesystemrights.value -contains "Modify"} But the final part of that isn't working - I get back no result. But I know that they have Modify access - if I put in: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} | select

问题 I am able to watch local directories using inotify kernel subsystem based solutions. There are some python projects too which are working on top of inotify like pyinotify, PyInotify, fsmonitor and watchdog. I have mounted remote ftp server in local directory using curlftpfs so all syncing is easy now. But inotify is not able to watch network mounted points like local directories. I want to track if there is new files added to ftp server. How can I achieve like I do for local directory using

问题 journal mode data=journal mode provides full data and metadata journaling. All new data is written to the journal first, and then to its final location. In the event of a crash, the journal can be replayed, bringing both data and metadata into a consistent state. This mode is the slowest except when data needs to be read from and written to disk at the same time where it outperforms all others modes. Enabling this mode will disable delayed allocation and O_DIRECT support. Here I have a few

问题 can anyone tell me how to list all subfolders in vb.net. i want to put it on a listbox, i have created a code but it only search on the current location, and does not include subfolder. here is my code,, Imports System.IO Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim dnum, fnum As Integer For Each drive As String In Directory.GetLogicalDrives() ListBox1.Items.Add(drive) Next drive Do While dnum < ListBox1

问题 I have a MDI application. This MDI application has lots of other tools including an editor as well. I would like to open all the ".txt" files with the editor of my MDI application, thereby making my application as the default viewer of all the ".txt" files. Whenever the user edits a ".txt" File the MDI application should launch and a editor window should be populated with the contents of the chosen ".txt" file . Is there a way I can do that please. Thanks 回答1: You need to change this reg key:

问题 I have a MDI application. This MDI application has lots of other tools including an editor as well. I would like to open all the ".txt" files with the editor of my MDI application, thereby making my application as the default viewer of all the ".txt" files. Whenever the user edits a ".txt" File the MDI application should launch and a editor window should be populated with the contents of the chosen ".txt" file . Is there a way I can do that please. Thanks 回答1: You need to change this reg key: