Questions tagged [process]
This tag is about operating system processes. It may also refer to a specific construct on a given platform, e.g., the System.Diagnostics.Process class for .NET
process
18,326
questions
3042
votes
40
answers
4.4m
views
Find (and kill) process locking port 3000 on Mac [closed]
How do I find (and kill) processes that listen to/use my TCP ports? I'm on macOS.
Sometimes, after a crash or some bug, my Rails app is locking port 3000. I can't find it using ps -ef...
When running
...
- 40k
2031
votes
35
answers
1.4m
views
What is the difference between a process and a thread?
What is the technical difference between a process and a thread?
I get the feeling a word like 'process' is overused and there are also hardware and software threads. How about light-weight processes ...
- 40.8k
989
votes
7
answers
1.1m
views
How do I get the application exit code from a Windows command line?
I am running a program and want to see what its return code is (since it returns different codes based on different errors).
I know in Bash I can do this by running
echo $?
What do I do when ...
- 11.8k
912
votes
32
answers
1.5m
views
How can I measure the actual memory usage of an application or process?
How do you measure the memory usage of an application or process in Linux?
From the blog article of Understanding memory usage on Linux, ps is not an accurate tool to use for this intent.
Why ps is &...
- 16.8k
887
votes
60
answers
1.7m
views
Node / Express: EADDRINUSE, Address already in use - how can I stop the process using the port?
I have a simple server running in node.js using connect:
var server = require('connect').createServer();
//actions...
server.listen(3000);
In my code I have actual route handlers, but that's the ...
- 9,687
819
votes
13
answers
628k
views
What killed my process and why?
My application runs as a background process on Linux. It is currently started at the command line in a Terminal window.
Recently a user was executing the application for a while and it died ...
- 8,229
793
votes
14
answers
145k
views
Xcode process launch failed: Security
I have been developing an app for 1 or 2 weeks now and just yesterday I have updated my iPhone 5S to the iOS 8 GM. Everything worked fine and I could test on my device as well until I deleted the app ...
- 9,219
770
votes
35
answers
790k
views
How to wait in bash for several subprocesses to finish, and return exit code !=0 when any subprocess ends with code !=0?
How to wait in a bash script for several subprocesses spawned from that script to finish, and then return exit code !=0 when any of the subprocesses ends with code !=0?
Simple script:
#!/bin/bash
for ...
- 12k
662
votes
31
answers
862k
views
How do I run a node.js app as a background service?
Since this post has gotten a lot of attention over the years, I've listed the top solutions per platform at the bottom of this post.
Original post:
I want my node.js server to run in the background, ...
- 10.7k
600
votes
13
answers
717k
views
How do I execute a command and get the output of the command within C++ using POSIX?
I am looking for a way to get the output of a command when it is run from within a C++ program. I have looked at using the system() function, but that will just execute a command. Here's an example ...
- 11.2k
466
votes
35
answers
443k
views
What's the best way to send a signal to all members of a process group?
I want to kill a whole process tree. What is the best way to do this using any common scripting languages? I am looking for a simple solution.
- 7,005
447
votes
72
answers
497k
views
Visual Studio "Could not copy" .... during build
I keep getting this error during the build of my VS2012 C# project
Error 41 Could not copy "obj\Debug\WeinGartner.WeinCad.exe" to
"bin\Debug\WeinGartner.WeinCad.exe".
Exceeded retry count of 10....
- 31.8k
412
votes
11
answers
683k
views
Start a background process in Python
I'm trying to port a shell script to the much more readable python version. The original shell script starts several processes (utilities, monitors, etc.) in the background with "&". How can I ...
- 6,620
384
votes
8
answers
337k
views
How to get the start time of a long-running Linux process?
Is it possible to get the start time of an old running process? It seems that ps will report the date (not the time) if it wasn't started today, and only the year if it wasn't started this year. Is ...
- 18.8k
380
votes
10
answers
572k
views
