windows symbolic link target

问题

Say that I set up a symbolic link:

mklink  /D C:\root\Public\mytextfile.txt C:\root\Public\myothertextfile.txt

^{Editor's note: Option /D - which is for creating directory symlinks - is at odds with targeting files, as in this example, which has caused some confusion. To create a file symlink, simply omit /D.}

Is there a way to see what the target of mytextfile.txt is, using the command line?

回答1:

As Harry Johnston said dir command shows the target of symbolic links

2014/07/31  11:22    <DIR>          libs
2014/08/01  13:53             4,997 mobile.iml
2014/07/31  11:22               689 proguard-rules.pro
2014/09/28  10:54    <JUNCTION>     res [\??\C:\Users\_____\mobile\src\main\res]

回答2:

To complement Paul Verest's helpful answer:

While cmd's dir indeed shows the link type and target path, extracting that information is nontrivial - see below for a PowerShell alternative.
In order to discover all links in the current directory, use dir /aL.

PowerShell (PSv5+) solutions:

List all links and their targets in the current directory as full paths:

PS> Get-ChildItem | ? Target | Select-Object FullName, Target

FullName                      Target
--------                      ------
C:\root\public\mytextfile.txt {C:\root\Public\myothertextfile.txt}

Determine a given link's target:

PS> (Get-Item C:\root\Public\mytextfile.txt).Target
C:\root\Public\myothertextfile.txt

回答3:

Write a batch file( get_target.bat) to get the target of the symbolic link:

@echo off
for /f "tokens=2 delims=[]" %%H in  ('dir /al %1 ^| findstr /i /c:"%2"') do (
    echo %%H
)

For example, to get the target of C:\root\Public\mytextfile.txt:

get_target.bat C:\root\Public\ mytextfile.txt

回答4:

Maybe someone's interested in a C# method to resolve all directory symlinks in a directory similar to Directory.GetDirectories(). To list Junctions or File symlinks, simply change the regex.

static IEnumerable<Symlink> GetAllSymLinks(string workingdir)
{
    Process converter = new Process();
    converter.StartInfo = new ProcessStartInfo("cmd", "/c dir /Al") { RedirectStandardOutput = true, UseShellExecute = false, CreateNoWindow = true, WorkingDirectory = workingdir };
    string output = "";
    converter.OutputDataReceived += (sender, e) =>
    {
        output += e.Data + "\r\n";
    };
    converter.Start();
    converter.BeginOutputReadLine();
    converter.WaitForExit();

    Regex regex = new Regex(@"\n.*\<SYMLINKD\>\s(.*)\s\[(.*)\]\r");

    var matches = regex.Matches(output);
    foreach (Match match in matches)
    {
        var name = match.Groups[1].Value.Trim();
        var target = match.Groups[2].Value.Trim();
        Console.WriteLine("Symlink: " + name + " --> " + target);

        yield return new Symlink() { Name = name, Target = target };
    }
}

class Symlink
{
    public string Name { get; set; }
    public string Target { get; set; }
}

回答5:

all credits to @SecurityAndPrivacyGuru , [cmd]

complete batch script/function that reads symlink{|s in folder} and outputs list with them and their target paths

@echo off
setlocal enableExtensions enableDelayedExpansion
cd /D "%~dp0"
set br=^


rem br;


set "pafIf=<<pafToSymlink|pafToFolder>>"
set "gIfZsymLink="
for /f "tokens=*" %%q in ('dir "!pafIf!" /al /b') do (
    for /f "tokens=2 delims=[]" %%r in ('dir /al ^| findstr /i /c:"%%q"') do (
        set "gIfZsymLink=!gIfZsymLink!%%~fq>%%r!br!"
    )
)
set "gIfZsymLink=!gIfZsymLink:~0,-1!"
rem echo "!gIfZsymLink!"

for /f "tokens=1,2 delims=>" %%q in ("!gIfZsymLink!") do (
    echo symlink: %%q , filepath: %%r
)


:scIn
rem endlocal
pause
rem exit /b

来源：https://stackoverflow.com/questions/10188485/windows-symbolic-link-target

标签

windows

symlink