You can walk the pid entries in /proc and check for your process in either the cmdline file or perform a readlink on the exe link (The following uses the first method). #include <stdlib.h> #include <stdio.h> #include <string.h> #include <unistd.h> #include <dirent.h> #include <sys/types.h> pid_t proc_find(const char* name) { DIR* dir; struct dirent* ent; char* … Read more
Well after I did a little research, it would appear that Peter’s comment was correct. Because the JVM processes were launched by another user (the NETWORK SERVICE account because they were being started by a Windows service) they didn’t show up in jvisualvm. Workaround Since I have access to the application configuration, I have found … Read more
Use Start-Process with the -PassThru argument like this: $app = Start-Process notepad -passthru Wait-Process $app.Id
ERRORLEVEL will contain the return code of the last command. Sadly you can only check >= for it. Note specifically this line in the MSDN documentation for the If statement: errorlevel Number Specifies a true condition only if the previous program run by Cmd.exe returned an exit code equal to or greater than Number. So … Read more
Just in case anyone else runs across this question and is looking for a code sample, I had to do this recently for a Python library project I’m working on. Here’s the test/sample code I came up with: #include <stdio.h> #include <windows.h> #include <tlhelp32.h> int main(int argc, char *argv[]) { int pid = -1; HANDLE … Read more
By using psutil https://github.com/giampaolo/psutil: >>> import psutil, os, time >>> p = psutil.Process(os.getpid()) >>> p.create_time() 1293678383.0799999 >>> time.strftime(“%Y-%m-%d %H:%M:%S”, time.localtime(p.create_time())) ‘2010-12-30 04:06:23′ >>> …plus it’s cross platform, not only Linux. NB: I am one of the authors of this project.
From reading UNIXProcess.java, this is what happens: We need to distinguish between two states: either process is still alive, or it is dead. If the process is alive, by closing OutputStream (goes to stdin of the process), you are telling the process that there is no more input for it. By closing InputStreams (stdout, stderr … Read more
You need to redirect the standard output or standard error. Here’s a code sample for stdout: Process p = new Process(); p.StartInfo.FileName = “hello.exe”; p.StartInfo.RedirectStandardOutput = true; p.StartInfo.UseShellExecute = false; p.Start(); string stdout = p.StandardOutput.ReadToEnd(); p.WaitForExit();
WMI is great and it works with process names too. Although if you need to track process termination the more lightweight and easier way is the following: VOID CALLBACK WaitOrTimerCallback( _In_ PVOID lpParameter, _In_ BOOLEAN TimerOrWaitFired ) { MessageBox(0, L”The process has exited.”, L”INFO”, MB_OK); return; } DWORD dwProcessID = 1234; HANDLE hProcHandle = OpenProcess(PROCESS_ALL_ACCESS, … Read more
For looking at Java processes jps is very useful. This will give you the main class and jvm args: jps -vl | grep <pid>