nohup is a POSIX command to ignore the HUP (hangup) signal.

learn more… | top users | synonyms

0
votes
3answers
862 views

Kill a nohup mpi process

I have started a program in parallel using the command: nohup mpirun -7 mylongprogram.py & I now want to terminate the program. When I want to kill the process by the command: kill -9 ...
0
votes
1answer
720 views

Starting Resque worker with script doesnt work, starting by hand does

I am trying to figure out why my process doesn't work if started via a script, but works fine if started by hand. Here's the details: script is a resque worker start script. The script location is ...
4
votes
2answers
193 views

How to completely detach a process

I want to spawn a process and run it at the top level so that when the shell exits, the process keeps running. I had mistakenly thought that nohup would do this, but when I exit from the shell (the ...
4
votes
3answers
655 views

Why do 'nohup' and 'disown' not work on SoX (invoked as 'play')

I can run this command: $ play mylist.m3u And music plays. I can then press Ctrl-Z to suspend the job, and issue bg to have it run in the background. However, if I then run disown and exit, the ...
3
votes
2answers
1k views

Disown won't take -h option

I'm running a command that I now realize I'd like to leave running after I close my SSH session. I didn't start it with a & argument, but I have put it in the background (CTRL-z, bg). Now I'm ...
232
votes
2answers
62k views

Difference between nohup, disown and &

What is the difference between $ nohup foo and $ foo & and $ foo & $ disown
1
vote
1answer
22 views

Long running script stops sending output to file

I have a script that I'm using to capture some status of the server at 10 second intervals. The script is as follows: for (( ; ; )) do /usr/local/apache/bin/apachectl fullstatus sleep 10 ...
1
vote
2answers
37 views

Command keeps exiting, despite use of `nohup`

What am I doing wrong here? I Log into the first server (using putty) and run the following query: sh -c 'nohup mysqldump -hxxx -Pxxx -uxxx -pxxx --dump-slave --include-master-host-port ...
3
votes
4answers
92 views

Is it possible to run nohup and still see verbose output on screen

I have a fairly simple shell script patch file (in essence, some scripting plus rpms all in a single file). It works great but I encountered something I wasn't expecting: a user accidentally closed ...
9
votes
5answers
14k views

How to totally fork a shell command that is using redirection

I've written quite a few shell scripts over the years (but I'm certainly not a sysadmin) and there's something that always caused me troubles: how can I fork a shell command immune to hangups in the ...
0
votes
0answers
46 views

How to run a command from vim and direct output to /dev/null

When writing a .tex file, I want to be able to view the pdf of the file. I remapped \e to show the pdf file in evince as below: nnoremap \e :!nohup evince %:r.pdf & >/dev/null ...
0
votes
1answer
41 views

How do I stop a program sent to run in background through ssh

I started a program in the background on a remote machine through ssh using nohup ./program & I want to kill/stop this program on remote machine as it seems like an infinite loop. How can I do ...
1
vote
0answers
86 views

nohup is not working when called from root folder

When I execute the nohup command from the same folder it's working fine (server.php is used to listen to a port 7070) root@servername:/var/www/html/admin# nohup php server.php & [4] 2803 ...
-1
votes
2answers
62 views

execute multiple commands after ssh

I need to pass a bash command into another process that needs to do the following: ssh into a computer. This does not require a password prompt. set up some environment variables: source ...
3
votes
1answer
238 views

Exiting terminal running “nohup ./my_script &” => “You have running jobs”. OK to exit?

Say I run the following on a remote box with the idea of preventing killing the job when I disconnect the terminal. nohup ./my_script.sh & When I try to exit my terminal, I got the following ...
0
votes
1answer
81 views

what is the difference between starting a command with nohup and &? [duplicate]

nohub and & seem to have a similar effect on the surface, they both start processes without occupying the shell from which they have been started, how do they differ on a deeper level?
0
votes
2answers
83 views

nohup not updating nohup.out

Boiling down to the smallest problem here is a simple python script that I want to run using nohup on linux. I run it using the following (on linux): nohup python test.py & The command seems ...
1
vote
2answers
50 views

Automatic Background Processes

I'm running my Raspberry Pi off an SSH server, and want to be able to access it out of home. Sure, all I need is an IP. But with my terrible internet, it's constantly dropping out. My IP is constantly ...
2
votes
3answers
97 views

Preventing terminal disconnection from killing a running job in zsh [duplicate]

I went through the top answer to this question: Difference between nohup, disown and &, and I read specfically the following: With disown the job is still connected to the terminal, so if the ...
7
votes
2answers
20k views

nohup: ignoring input and redirecting stderr to stdout

I am starting my application in the background using nohup as mentioned below - root@phx5qa01c:/bezook# nohup java -jar ./exhibitor-1.5.1/lib/exhibitor-1.5.1-jar-with-dependencies.jar -c file ...
0
votes
0answers
79 views

Start a process from (noninteractive) shell script (cgi) and keep it running when script ends

I want a cgi script to start a process which stays alive after the cgi script exits. I tried: #!/bin/bash nohup process-to-keep-running & That works fine, if I run the script from an ...
3
votes
3answers
434 views

Using `nohup` to Import MySQL Dump on Debian Server

I am trying to import a mysqldump file into my mysql database, but my (putty) connection to the server keeps timing out halfway through. I tried to use nohup . . . . & but this doesn't appear to ...
13
votes
4answers
7k views

nohup vs. Screen

In the past, I've used nohup to run big background jobs, but I've noticed that a lot of people use Screen in this context. Does Screen provide some kind of functional advantage that I am unaware of, ...
1
vote
2answers
97 views

how to use nohup while still sending stderr to the terminal

nohup automatically redirects stderr to stdout, but I want to send it to the terminal (it shows progress). How can I do that?
2
votes
2answers
222 views

stderr gets flushed before stdout, when using file logger

My python code: import sys print "i am a daemon" print "i will be run using nohup" sys.stderr.write("i am an error message inside nohup process\n") When i run the code as python a.py, it shows, i ...
0
votes
0answers
135 views

Avoiding heredoc sh[process_number].* files in /tmp directory

I have a .ksh file which logs into sqlplus and runs some queries. The block of code is something as mentioned below: //Other things done in ksh sqlplus -s @connect.sql << EOF Query1 Query2 ...
2
votes
2answers
6k views

How to know if a background job is finished?

I invoke a script (do_something) in background via another script (do_manythings) as below. nohup do_something & How would I know in the parent script (do_manythings) that the job invoked ...
8
votes
2answers
12k views

Is it possible for nohup to write the output both to the file nohup.out AND to the screen/terminal?

I am using the bash shell. I frequently use nohup to ensure that my processes are not stopped when I close the shell/terminal that started them. I use a syntax like: nohup myprocess When ...
2
votes
1answer
353 views

Get the time when nohup R program finishes

I want to get the time when program finish. But it always show the same time. Here is my shell script. But it always show that START TIME is same as END TIME. START=$(date +"%r") nohup Rscript ...
0
votes
1answer
387 views

nohup, screen and tmux not working when closing connection on yocto linux (intel edison)

I have an Intel Edison with Yocto Linux and standard configurations. It had nohup pre-installed and I managed to install both screen and tmux (by compiling them from sources). Now, I would like to run ...
3
votes
3answers
759 views

Why is chromium-browser killed when I close the terminal despite nohup?

This question is old, and I am still not clear about why. Original question in 2014: In a Gnome Terminal tab, I ran $ nohup chromium-browser & But when I close the terminal tab, ...
1
vote
1answer
187 views

Is there any disadvantage of executing a shell script using nohup?

To execute a shell script in background and without an interruption, we use nohup command. For example: $nohup mytest.sh & Press ALT Press Enter Is there any drawback or disadvantage of this ...
2
votes
1answer
450 views

what are practical uses of stdbuf or nohup?

I have to finish a writeup of a few coreutils commands for a course at the moment, and I can't think of a starting point for a small practical code example that demonstrates the potential uses of ...
19
votes
7answers
65k views

Execute remote commands, completely detaching from the ssh connection

I have 2 computers, localpc and remoteserver. I need localpc to execute some commands on remoteserver. One of the things it needs to do is start a backup script that runs for a number of hours. I ...
0
votes
1answer
249 views

Keep program running after logging out SSH -X, and reopening it later [duplicate]

I need to login to my school computer where I am running an experiment. I am logging via SSH -X since it uses a custom made GUI application. I want to be able open the program, make it start ...
0
votes
0answers
26 views

how can I redirect the grepped output of tail -f to a file? [duplicate]

I want to do this: tail -f /var/log/apache2/access.log | grep 'POST \/review' But I want the output to go to a file and I want this to run constantly for a day or two. I tried a simple script ...
4
votes
1answer
357 views

Why is `setopt nohup` required to make `nohup watch` work in zsh?

In zsh, setopt nohup seems to be required to make nohup work, as follows: # nohup does not work without setopt nohup ➜ /tmp zsh ➜ /tmp nohup watch ls & [1] 31556 nohup: ignoring input and ...
14
votes
3answers
9k views

When do you need 'nohup' if you're already forking using '&'?

First this question is related but definitely not the same as this very nice question: Difference between nohup, disown and & I want to understand something: when I do '&', I'm forking ...
3
votes
1answer
189 views

What is the difference between letting nohup append to 'nohup.out' and explicitly redirecting it to a file?

Consider the following scenario: tail.sh: #!/bin/bash tail -f test.txt invoke.sh: #!/bin/bash nohup ./tail.sh & invoke_explicitredirect.sh: #!/bin/bash nohup ./tail.sh > out.log & ...
4
votes
2answers
4k views

What does a “[1]+ Exit 1” response mean?

I ran this command to try and get my python program to run in the background and let me exit the SSH connection I am using: nohup python files.py >> files.log & I then check ps to check ...
10
votes
1answer
7k views

Why does 'nohup command >& /dev/null' seem to “work” in some shells?

I edited an answer on Ask Ubuntu that was suggesting the following nohup gedit >& /dev/null & When they actually meant nohup gedit &> /dev/null & The latter correctly ...
1
vote
1answer
1k views

How to keep running a process in Android when disconnecting adb terminal? command “nohup” not found

I'm trying to analyze the reason for random reboots of my phone (see here). Therefore I wanted to record the logcat and kernel messages till the restart to see the logs even after the usb disconnects, ...
2
votes
2answers
408 views

How to read from a named pipe after the writer process exits?

I want to use named pipes as asynchrnonous task queues (JMS-like, perhaps). For example, suppose a client sends some data that I wish to insert into a database, but I want the client to disconnect ...
1
vote
1answer
801 views

Running script need two command with nohup

I want to run a script with nohup because it takes long time but it needs a password to run. how can I write the command using nohup. For example to run the script interactively I first run php hat ...
-5
votes
4answers
3k views

Why doesn't the nohup command seem to be working?

Please let me know any example that shows nohup is working for a program even after logout. I tried using it without the nohup command to run a script in the background and it seems to be working even ...
6
votes
2answers
10k views

Having an rsync job complete after closing SSH connection

I am transferring a large amount of files from one computer to another using rsync. I am doing this by SSHing into the source computer and executing a command like this: sudo rsync ssh ...
0
votes
1answer
105 views

Why process wasn't killed after closing SSH connection

I launched this command via SSH on a Debian server: watch --precise -n 1 top -b -n 1 -p 27330 | tail -n 1 | awk "{print \$9}" >> 27330.log & After a while I quit my terminal. When I ...
22
votes
4answers
18k views

How to Execute multiple command using nohup

I want to execute multiple command using nohup, And each command should execute after previous command, I used this command for example: nohup wget $url && wget $url2 > /dev/null ...
0
votes
1answer
177 views

SSH to a server, execute update command that continues even after logging off the ssh session

Okay I saw a lot of questions like this, but almost all have either theoretical answers which do clear the concept but I am still not able to put it up in code. What I want to achieve using a bash ...
0
votes
1answer
944 views

Keep a PHP script running indefinitely on a Web Server [duplicate]

I'm having a pretty big issue that I need to get resolved. Basically I have little experience using Linux and I've been working on a project recentley that involves me having to use quite a lot of ...