Linux系統執行命令方法

薛小謙發表於2022-05-24
Linux

現在我們無論是工作中還是學習中很多情況下用到Linux系統，當我們需要在C#程式碼中呼叫類似與cmd視窗執行命令時候，就需要用到此方法

public static Process CommitCommand(string commandStr, string workingDir, Action<DataReceivedEventArgs> action)
        {
            var logger = LogManager.GetCurrentClassLogger();
            try
            {
                logger.Debug("Get into CommitCommand");
                Process process = new Process();
                process.StartInfo.FileName = commandStr.Substring(0, commandStr.IndexOf(" ")).Trim();
                var pathDir = Environment.GetEnvironmentVariable("PATH").Split(RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ? ":" : ";", StringSplitOptions.RemoveEmptyEntries)
                    .FirstOrDefault(s =>
                        File.Exists(Path.Combine(s, process.StartInfo.FileName)) ||
                        File.Exists(Path.Combine(s, process.StartInfo.FileName + ".exe")));
                if (string.IsNullOrEmpty(pathDir))
                {
                    process.StartInfo.FileName = Path.GetFullPath(process.StartInfo.FileName, workingDir);
                }
                process.StartInfo.Arguments = commandStr.Substring(commandStr.IndexOf(" ")).Trim();
                process.StartInfo.WorkingDirectory = string.IsNullOrWhiteSpace(workingDir) ? process.StartInfo.WorkingDirectory : workingDir;
                process.StartInfo.CreateNoWindow = true;
                process.StartInfo.ErrorDialog = false;
                process.StartInfo.UseShellExecute = false;
                process.StartInfo.RedirectStandardOutput = true;
                process.StartInfo.RedirectStandardError = true;
                process.StartInfo.RedirectStandardInput = true;
                process.ErrorDataReceived += (sender, args) =>
                {
                    action(args);
                    logger.Error($"ErrorDataReceived:commandStr:{commandStr}. workingDir:{workingDir}. Error:{args.Data}");
                };
                process.EnableRaisingEvents = true;
                process.OutputDataReceived += (sender, args) =>
                {
                    action(args);
                    //logger.Debug($"OutputDataReceived:{args.Data}");
                };
                process.Exited += (sender, args) =>
                {
                    logger.Debug("程式退出！");
                    logger.Error($"Exited:commandStr:{commandStr}. workingDir:{workingDir}");
                };
                process.Start();

                process.StandardInput.AutoFlush = true;//process.StandardInput.WriteLine("")
                process.BeginErrorReadLine();
                process.BeginOutputReadLine();
                logger.Debug("Sign out CommitCommand");
                return process;
            }
            catch (Exception e)
            {
                logger.Error(e, "process can not start.");
                logger.Debug(e.Message);
                return null;
            }
        }

 

 

呼叫也非常簡單，引數1：執行得命令 引數2：路徑 比如說我們需要執行mysql，就需要在對應資料夾內執行對應命令，這個時候第二個引數就可以傳入路徑

然後我再給出一個呼叫得例子

Process pc = new Process();
                pc = ToolClass.CommitCommand("nvidia-smi", "/", args =>
                {
                    if (!string.IsNullOrEmpty(args.Data))
                    {
                        useGpuNumber.Add(args.Data);
                    }
                });
                pc.WaitForExit();
                pc.Dispose();

我這裡時檢視顯示卡也就是GPU得資訊的命令，可以再root下執行，然後我這裡就傳入了一個/，拿到執行命令返回的資料

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