I am trying to learn how to set file permissions on Linux/Unix with .NET Core. I already found a question on here that points me in the direction of System.IO.FileSystem, but I can't seem to find any documentation on how to use it.
In a nutshell, I'd like to chmod a file 644 from a .NET Core application that only runs on Linux, but am at a loss on how to proceed.
Similar approach as the one suggested by @kspearrin, but using CliWrap for simplicity:
public static async ValueTask SetPermissionsAsync(string filePath, string permissions) =>
await Cli.Wrap("/bin/bash")
.WithArguments(new[] {"-c", $"chmod {permissions} {filePath}"})
.ExecuteAsync();
Handles escaping, errors, etc. automatically.
Here is a simple chmod function that you can use in c# with no depencencies.
// Returns true if success and false otherwise
// permissions can be an int or a string. For example it can also be +x, -x etc..
bool Chmod(string filePath, string permissions = "700", bool recursive = false)
{
string cmd;
if (recursive)
cmd = $"chmod -R {permissions} {filePath}";
else
cmd = $"chmod {permissions} {filePath}";
try
{
using (Process proc = Process.Start("/bin/bash", $"-c \"{cmd}\""))
{
proc.WaitForExit();
return proc.ExitCode == 0;
}
}
catch
{
return false;
}
}