Golang get name of current process. Getwd to find the current working directory, and os.
Golang get name of current process Jun 28, 2013 · In Ruby, you can use Kernel. Jun 27, 2020 · PMGO is a lightweight process manager written in Golang for Golang applications. If yes, use filepath. FuncForPC into what I need? Nov 5, 2025 · Package metrics provides a stable interface to access implementation-defined metrics exported by the Go runtime. Once your system grows beyond a single process and starts to become distributed, it becomes harder to follow a call starting from the front-end web server to all of its back-ends until a response is returned back to the user. Process (operating system process) by Name (FindByName) or PID (Find), crossplatform, lightly, fast and full compatible with stdlib os. Jan 2, 2024 · In this tutorial we will cover different scenarios to kill a process using golang code. exe Mar 13, 2014 · That will give you the directory where the process was started not the executable file that the process is running. May 1, 2024 · Explore techniques for managing blocking processes in Go, focusing on signal handling, process groups, & platform-specific considerations in linux environments. This package provides a way to interact with the operating system and access environment variables, file paths, and other We would like to show you a description here but the site won’t allow us. In this article, we'll explore how to retrieve the current process ID in Go. This tutorial provides developers with comprehensive insights into environment variable handling, exploring the fundamental techniques and practical use cases for setting and manipulating process environments in Go. Process. Each process has its unique identifier – to uniquely identify an active process. I'm not looking for the user currently running the application, which can be got from the built-in function user. Nov 21, 2024 · Start it (as superuser) to get pretty formatted JSON output of all the info that sysinfo library provides. On Linux, /proc/<pid>/exe will be a symlink to the executable file. Func, and then further get the function name of the caller, which will be used in the following functions and methods. Nov 1, 2021 · Output If we run the command go run main. On Linux at least, syscall. Getwd() but Feb 28, 2024 · Simple developer’s guide to Golang V1. FindProcess that takes a name. java) More information about this process id can be shown using the -o options flag. Caller is a call stack identifier, through which we can get the function information of the call stack *runtime. In the Go programming language, there is a package called os that provides a platform-independent See full list on github. What would be an effective way to kill a process with Go code if you only know the process name? I see some functions provided by the os package like: func FindProcess(pid int) (*Process, error) f Nov 5, 2025 · Overview Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. Aug 22, 2016 · It seems completely pointless to get the name of a function by passing the function's name. Note: There is no guarantee that the path is still pointing to the correct executable. The library can find and list processes on Linux, Mac OS X, Solaris, and Windows. The sample code shows how to get more information on the process from the operating system utility ps. Nov 26, 2024 · Working with file paths in Go often involves extracting the filename and its extension from a full file path. Pid) running concurrently to your Go application. go from /home/user, I need… All modules live within one process and share common resources to report logs, errors, and other diagnostic information. The argv slice will become os. Nov 5, 2025 · StartProcess starts a new process with the program, arguments and attributes specified by name, argv and attr. Feb 10, 2016 · So the golang process is a child process, and the parent is the IDE plugin (written in Java / C#). Returns one value per cpu, or a single value if percpu is set to false. gops is a command to list and diagnose Go processes currently running on your system. Args in the new process, so it normally starts with the program name. The Go path/filepath package provides utilities for manipulating file paths across different operating systems. Jul 30, 2017 · I have tried to use os. Aug 27, 2019 · Process List Library for Go go-ps is a library for Go that implements OS-specific APIs to list and manipulate processes in a platform-safe way. Other method on Process can be used to get more information about the process. Nov 16, 2021 · The Executable () function is an inbuilt function of the os package, it is used to get the path name for the executable that started the current process. It could be useful to print the PID at the start of the application, so at the time of the crash, the cause could also be investigated by the retrieved PID. We will now examine a Go function that effectively locates Linux OS process IDs using their binary Go by Example: Exec'ing Processes Next example: Signals. The process handle must have the PROCESS_QUERY_INFORMATION or PROCESS_QUERY_LIMITED_INFORMATION access right. How to let Golang print out all goroutines stack trace? Nov 5, 2025 · Unlike Control-C and Control-Break, Notify does not change process behavior when either CTRL_CLOSE_EVENT, CTRL_LOGOFF_EVENT or CTRL_SHUTDOWN_EVENT is received - the process will still get terminated unless it exits. com/golang/sys get 'sys', I received the following: Oct 13, 2014 · I have hundreds of application-specific objects, so I get hundreds of identical goroutines. Dec 30, 2024 · In an operating system, each process has a unique process ID, and each thread has its own unique thread ID. Learn how (and why) to monitor your application! Oct 6, 2021 · If the answer is no, is there a way to get the current Go module name using runtime or reflect so that I can transform the output of runtime. We will use different in-built functions to achieve this requirement. Feb 6, 2015 · I want to fork a go process and get back the id of the new process(es), but all I can see in the exec or os libraries is to start a new process. The library can find and list processes on Linux, Mac OS X, and Windows. Jun 29, 2022 · Get the function name of the caller The first return value of runtime. If the provided name is constructed from user input, it should be sanitized before calling ServeFile. ProcAttr{} structure that holds working directory, environment variables, file descriptors etc Feb 5, 2023 · The current working directory of a go program is usually different in development, production, and test environments, which makes it troublesome to get the current working directory of the program under different circumstances. Just because a pid exists, it does not quarantee it is same process as before. Nov 26, 2024 · When developing applications in Go, you might encounter scenarios where you need to obtain the current process ID (PID) of your program. Keep iterating with Process32Next, until you get the ERROR_NO_MORE_FILES error, which is your cue to finish. org/pkg/os/ but doesn't give anything to see the Nov 30, 2021 · NewProcess creates a new Process instance, it only stores the pid and checks that the process exists. Is there any way to find a process by name and not only by pid, or at least get a list of running processes on the system (Linux) without manually reading /proc and parsing the stats? I’m looking to signal a process but I didn’t find anything similar to os. Getwd to find the current working directory, and os. PS Nov 19, 2021 · Golang | os. Getpid () In the Go language, the os package provides a platform-independent interface to operating system (Unix-like) functionality. Jun 24, 2025 · Hooks into the sys_enter_execve tracepoint to capture process executions as they occur. A good question: How golang to get process name by processing ID (PID)? At present, the GO API does not provide a method of obtaining a process name through the PID. This time, we will attempt to obtain One commonly recommended way of getting to the process name from a Win32 process handle is by using GetProcessImageFileName. Executable to find the executable that started the current process. Jan 1, 2024 · There are 4 different methods to get current directory in golang. Is it possible to do the same thing in Go? Dec 30, 2023 · Introduction Understanding how to get environment variables in GoLang is an essential skill for any programmer working with this powerful language. Err(). But the first param of the function is the "handle to the window or service that will receive device events" (this I getted from Nov 26, 2024 · This can be useful for logging, alerts, or even displaying system health within a custom application. Jan 27, 2012 · How can I get the list of currently running processes in Go? The OS package provides some functions: http://golang. Jul 25, 2022 · Explore how to use gopsutil in Golang to get the usage of the host's hard disk, CPU, memory, processes, etc. Mar 6, 2024 · For many system functions, managing processes and finding their Process IDs (PIDs) is essential. We will also learn how to load environment variables specific to our program to the os. Go has a robust time package that facilitates working with time values. e. To process paths such as URLs that always use forward slashes regardless of the operating system, see the path package. For example cmd. In OS package there is a FindProcess () that you can pass in the ID of the process to get a process. Getpid () Function: Here, we are going to learn about the Getpid () function of the os package with its usages, syntax, and examples. com Current executable name, in Gosys. It uses some advanced features of Go: build tags, accessing DLL methods for Mar 4, 2013 · If a previously known pid is not found in the system (not sure of go functions), it means process has definitely terminated and has been joined (on Unix, with wait call) too. The first call will cache the current user information. , the name of the executable) Sends this data to Golang user space application using a perf event buffer (bpf_perf_event_output). Oct 29, 2016 · Hi. I have found a library that wraps linux sysinfo command. You can get the current directory of the program you are running (run golang). 00:00:02) CMD: the command that called the process (e. Feb 1, 2018 · I am creating Go command-line app and I need to generate some stuff in the current directory (the directory which the user execute the commands from) to get the pwd I need to use os. Introduction In the world of Golang programming, understanding how to effectively manage process environments is crucial for creating robust and configurable applications. Apr 14, 2023 · Learn how to use Go's os/user package to access and manipulate user and group information effectively with this comprehensive tutorial, including examples and code snippets. Go by Example: Spawning ProcessesNext example: Exec'ing Processes. go If I run go run main. Aug 10, 2024 · The os. Nov 18, 2021 · I want to get the process id by the process name in windows environment? I find golang only has the api os. Jul 13, 2018 · I'm trying to call function RegisterDeviceNotificationW of user32. What do you mean by "background"? When you Start() your Cmd you already have a separate child process (with proper Process. You pass in the executable, the argument list, and a syscall. While one can get the process with Getpid(), I haven't found something that will give me access to the whole command line. The filepath package uses either forward slashes or backslashes, depending on the operating system. May 22, 2020 · The Golang programming language makes it easy to build simple, reliable, and efficient software. When user closes IDE gracefully, the child process is also getting killed. Kill method in Golang is part of the os package and is used to terminate a process immediately. Args[0] and I guess I should check if the program name contains something different besides "foo". 16 for the new monitoring features. go. Executable: func Executable() (string, error) Executable returns the path name for the executable that started the current process. Nov 7, 2021 · Golang | Learn how to get the process id using the Getpid () function? Submitted by IncludeHelp, on November 07, 2021 Process id stands for Process Identifier, it is a unique number to identify the process. Method-1: The os package and Executable() function Method-2: file/filepath and the Abs() function Method-3: Using the osext package Method-4: Get the source file location Nov 5, 2025 · However, if the // child process calls Go's [os. Subsequent calls will return the cached value and will not reflect changes to the current user. This information can be crucial for logging, monitoring, or controlling execution flow. We can do it by using Getpid() function in os package in go golang. May 4, 2015 · How can I get the total amount of memory/RAM attached to a system in Go? I want to use native code only if possible. Thanks. Feb 12, 2017 · I need to start a new process in Go with the following requirements: The starting process should run even after the Go process is terminated I need to be able to set the Unix user/group that's runn Sep 30, 2013 · I have Java background, and I love to use signal QUIT to inspect Java thread dump. They are made up of a name which is matched to a specific value and can be created for system-wide or user Oct 8, 2020 · How to get a filename without extension in Go If you want to grab the name of a file without its extension, you can take a slice of the complete string as shown below: main. Abs, if no, use (I can't find the function name, there is a function that looks through the PATH to check where the program is). Next Article: How to get the current process ID in Go Previous Article: How to detect the current operating system in GO Series: File I/O and Operating System Interaction Golang Apr 25, 2017 · PID: echos the process id TTY: the name of the controlling terminal (if any) TIME: how much CPU time the has process used since execution (e. Jan 1, 2024 · In this article, we will learn about the OS package in Go, and explore ways to set, get, unset and lookup environmental variables. This method sends a SIGKILL signal to the process, which is a non-catchable, non-ignorable kill signal that forces the process to stop. It uses some advanced features of Go: build tags, accessing DLL methods for Windows Apr 24, 2004 · psutil for golang. Due to its simplicity, the source code of the utility also doubles down as an example of how to use the library. But other way around is not necessarily true. Feb 4, 2011 · The flag package only gives access to command line arguments, but not the executable name. If you're wanting full control - ie. Nov 26, 2024 · In Go, obtaining the current directory of the executing program is straightforward using the built-in os package. Aug 30, 2013 · EDIT: As of Go 1. Sep 23, 2015 · Killing a child process and all of its children in Go This blog post explores some common unix child process control use cases, and how to perform them in Go. If one already has the name, just print it or use it, why pass that name to another function which simply returns the same name back. 8 (Released February 2017) the recommended way of doing this is with os. Nov 5, 2025 · Current returns the current user. How would I go about correlating my logs with goroutines in the stacktrace? There doesn't seem to be a way of identifying a current goroutine in a stack trace and no way of naming a goroutine so I can see a specific value in stack trace. psutil for golang. Jul 6, 2012 · How can I get the list of currently running processes in golang under Windows? I need something like: List of currently running process in Golang but usable under Windows too. However, this one doesn't seem to be covered by AllenDang/w32. Apr 9, 2024 · QueryFullProcessImageName returns the full process image name for the given process. CODE EXAMPLE Use os. After the Run() completes, you can inspect ctx. Jun 12, 2019 · I want to get parent process id (ppid) from specific child process id (pid) using Golang for Linux os I have this code which gives ppid and pid of the current process but I want to retrieve ppid o Creates an array of new Process components and associates them with the existing process resources that all share the specified process name. The process ID is a unique identifier assigned by the operating system to each running process. Fetch the first process in the snapshot list with Process32First. There are other ways too, but I couldn't really find a good and clean way of enumerating all process names using any combo of functions in that library. I’m mostly sharing it to improve my … How could I get the current path of running go file or binary? For e. g. For a list, see this documentation page. You can then call kill on the process but is there a way to find a process based off of the name? Jan 6, 2025 · wyfSunflower commented on Jun 15, 2020 Could you please tell me how to get directory of specified windows process ?not only current process but also some else. If a symlink was used to start the process, depending on the operating system, the result Dec 31, 2024 · In an operating system, each process has a unique process ID, and each thread has its own unique thread ID. ForkExec() does what you want. I've no idea about Windows. go on the above code, then we will get the following output in the terminal. Here's what I'm currently using, which I think gets the job done, but there's got to be a better way: Is there a tool in the official tooling or the third party tool that lets you list all your running goroutines that are running with your main program? Or something like the observer in Erlang/Eli May 7, 2015 · 5 Can anyone recommend a module which can be used to get system information, like Python's psutil? When I tried >go get github. EDIT: I'm wrong, read the responses. Is there a more elegant Aug 9, 2012 · The provided context is used to kill the process (by calling os. exec to replace the current executing process by the one triggered. Contribute to shirou/gopsutil development by creating an account on GitHub. Similarly, in the Go language, each Goroutine has its own unique Go routine ID, which is often encountered in scenarios like panic. /home/user/project/main. So how to find out where the executable is? As usual in programming languages, there are several ways to do this. Username is: apache Getting the Name and ID To get the name of the user and the id, we call the Name () and Uid () function, respectively, on the current user. In this article, Nov 26, 2024 · Getting the current date and time in Go (Golang) is a fundamental task for many applications, from logging and reporting to timestamping or scheduling tasks. FindProcess(id),but no by name. These environmental variables required during development of software might be database connection strings and port, secret keys and many more. Get environmental variables: os May 3, 2013 · Is there anyway in Go to check if a proces is running by searching by process name? I see ways to do it with PID, however I don't have the PID to search by. Dec 20, 2018 · Hey there, I need to get application current dir and application PARENT dir, current dir was not hard and I did it as shown below; Feb 6, 2023 · How can I get a goroutine's runtime ID? I'm getting interleaved logs from an imported package - one approach would be to add a unique identifier to the logs of each goroutine. Current(). /proc/<pid>/cmdline To get the corresponding process name, you can also pass readlink /proc/6530/exe Gain Aug 10, 2024 · The os. Submitted by IncludeHelp, on November 19, 2021 os. Getpid function in Golang is part of the os package and is used to retrieve the process ID (PID) of the current process. If you're new to Go, this library has a good amount of advanced Go educational value as well. Dec 16, 2022 · In Golang, you can use the runtime package to get information about the current state of the Go runtime, including CPU, memory, and goroutine usage. Maybe you just need to remove -f from ssh flags? Jun 19, 2018 · I need to get the currently logged in user (s) on the local Windows machine, using Golang. Environment variables offer a way to influence the behaviour of software on a system and are part of the environment in which a process runs. Feb 3, 2020 · Process List Library for Go go-ps is a library for Go that implements OS-specific APIs to list and manipulate processes in a platform-safe way. Jan 2, 2021 · Package processex - find a os. Nov 30, 2021 · If an interval of 0 is given it will compare the current cpu times against the last call. At the moment, I don't think you can do this in Go code. Getwd] or GNU C's // get_current_dir_name, and the value of PWD is an alias for // the current directory, those functions will return the // value of PWD, which matches the value of Dir. Consider the code shown below. argv [0] holds the name of the currently running script, you might use __file__, but if called from within a module you would then get the module's __file__ attribute. Although Goroutines have inherent IDs, the Go language deliberately does not provide an interface to obtain this ID. May 31, 2017 · A description of an approach how to gracefully terminate a program in Go. Nov 5, 2025 · If the provided file or directory name is a relative path, it is interpreted relative to the current directory and may ascend to parent directories. You can, however, build a small C module to do this and then integrate it into your Go build. I don't believe there is a cross platform way to get the executable file for a process. We would like to show you a description here but the site won’t allow us. However, it can occasionally be difficult to retrieve PIDs based on the binary name, particularly if the names are lengthy or are not presented correctly when using tools like (process status) ps. Uses bpf_get_current_task() and bpf_get_current_comm() to gather process context, namely: The process ID (PID) The command name (i. The Getpid () function is an inbuilt function of the os package This repository shows the main parts needed to get a process list: Create a snapshot of the current windows process list using CreateToolhelp32Snapshot. stdin, stdout, stderr, and asynchronous notification of process exit, you'll need to use OS-specific calls. Index Constants Here, We will learn how to get the process id of the caller in go. May 10, 2020 · Getwd function is used to get the current working directory in Golang, the function returns the rooted path name and if the current directory can be reached via multiple paths, the function can return any one of them. There is no guarantee that the path is still pointing to the correct executable. Feb 18, 2013 · To change a process name on Linux, you need to use the prctl system call combined with the PR_SET_NAME option. There are only 65535 valid pids in standard Linux for example, and they can get re-used when Mar 24, 2018 · How to get the running process' pid in Go? tagged Go Lang, How to, Linux, OS, Process, Programming, Tutorial. Kill) if the context becomes done before the command completes on its own. dll. It helps you keep your applications alive forever, reload and start them from the source code. whxjhbgalxoqfoskziivbozldqmjmrhtxbxwypsrdfrrhrvckkukjucyyrbahjblbubyxqdmm