4
votes
0answers
44 views

How do I execute in background / return early?

For reference, I'm using phpseclib to control a remote SSH server using the 'root' account. I have to start/stop a java process which is ran in the background. Stopping works fine with killall java ...
3
votes
1answer
29 views

Is there an easy way to background a sudo shell?

A bit more details, what I'm looking for is some kind of ^Z for sudo shells. For instance when running a long command I can hit ^Z to suspend the command or when I do ~^Z in ssh after hitting Enter. ...
7
votes
4answers
700 views

I am using `&`: why isn't the process running in the background?

I know that I can append & to a command to run the process in the background. I'm SSH'ing into an Ubuntu 12.04 box and running a python program with $python program.py & -- but when I go to ...
8
votes
4answers
312 views

Terminate every background process

I have a few Stopped background processes. kill $(jobs -p) and kill `jobs -p` have no effect kill %1, kill %2, etc. successfully terminate individual processes How can I kill every background ...
3
votes
2answers
955 views

Shell script wait for background command

I am writing a script, but there is something I need that I can't find a way to do it... I need to make a command in background "command1 &" and then somewhere in the script I need to wait for it ...
1
vote
3answers
214 views

`wait` doesn't wait for `wget --background`

I have gone through several SE posts on the unix wait command and none of the posts resolve my problem. I have a weather forecast model to run. It has first to prepare some folders, then download data ...
1
vote
1answer
106 views

Alias for redirecting both standard output and standard error, as well as sending to background [duplicate]

I am trying to create an alias for redirecting both standard output and standard error of gedit to /dev/null, whilst sending the command to background. This works: $ alias gedit='gedit $1 > ...
1
vote
2answers
287 views

How to terminate a background process in Linux when the pid is unknown?

I have a job dispatcher bash shell script containing below codes: for (( i=0; i<$toBeDoneNum; i=i+1 )) do while true do processNum=`ps aux | grep Checking | wc -l` ...
7
votes
3answers
225 views

What's the difference between && and ; when forking sleep to background?

I have just asked a question about forking a process to sleep in the backgroud. The notation I came up with myself looks like this: sleep 10 && echo "hello world" & This answer to a ...
2
votes
5answers
1k views

How to start a program in the background

The program Boblight does not run in background. There is no noticeable difference between executing sudo boblightd and sudo boblightd& How can I solve this problem that the console will ...
4
votes
2answers
468 views

“nohup sudo …” does not prompt for passwd and does nothing

When I run nohup sudo myscript.sh & I only get something like [1] 1220 in return and do not get prompted for a password. The process does not start either. I want to run this script in the ...
13
votes
2answers
688 views

How to background a command chain?

I want to background a command chain like cp a b && mv b c && rm a. I have tried doing cp a b && mv b c && rm a & but this only backgrounds the last process. How ...
1
vote
1answer
45 views

How to customize a backend running job completion message?

Here is the situation, I am running a command (my own executives), in bash shell (Ubuntu), say something like this: [newbie@office currentCaseAFolder]$ FEMSolver & So that the FEMSolver job is ...
4
votes
4answers
5k views

Running multiple nohup commands in background

Got two commands cmd1 and cmd2. Of the two, cmd2 takes longer to finish. Need to run cmd2 and then cmd1. Tried to run them in following way: bash$ (nohup ./cmd2>result2 &) && nohup ...
23
votes
4answers
2k views

What's the difference between running a program as a daemon and forking it into background with '&'?

What are the practical differences from a sysadmin point of view when deploying services on a unix based system?
5
votes
1answer
220 views

How does sh -e interact with &?

I'm using sh (dash) on Ubuntu (lucid) and the manpage has this to say about -e: -e errexit If not interactive, exit immediately if any untested command fails. ...
1
vote
2answers
740 views

Have bash script wait for password

I want to write a little script which sets up a socks proxy via ssh and then starts a browser using that proxy. #!/bin/bash ssh -D 1234 user@host #& chromium-browser ...
19
votes
2answers
23k views

How to suspend and bring a background process to foreground

I have a process originally running in the foreground. I suspended by Ctrl+Z, and then resume its running in the background by bg <jobid>. I wonder how to suspend a process running in the ...
6
votes
1answer
567 views

Can I make “There are stopped jobs” harder to kill?

Typical scenario: I temporarily need to access a file that my vhost prevents me from accessing. I fire up vim, edit the settings and background vim to tell apache to reload its configuration. ...
3
votes
1answer
491 views

ssh “-f” don't give back hand in bash when listening to stdout/stderr

Please look at these: ## Does NOT return to the shell, but Ctrl-C can exit ssh -S none -fNR 13018:localhost:22 example.com | cat ## Returns to the shell (no "-S none") ssh -fNR ...
3
votes
3answers
666 views

Monitoring progress/liveness of background jobs

I have started a background job. Is there a way to know how it is progressing, and whether it has stopped? My command line is like: java weka.classifiers.trees.J48 -t data.arff J48-data.model ...
2
votes
0answers
276 views

What happens when you background a function which calls another function?

Question says it all on the tin. Can someone explain to me what goes on here ? I'm trying to find out how to background a process in a script that calls another function and reliably terminate it when ...
2
votes
3answers
1k views

Where do background jobs go?

From gnome-terminal I know the ability to suspend a job with C-z, and then send it to the background. When I close the terminal the process does not end. Where is the job being managed from, or is it ...
5
votes
5answers
2k views

How can I run `watch` as a background job?

When I run: watch 'cmd >> output.txt' & the job gets suspended by the system: 3569 Stopped (tty output) Is there a workaround?
5
votes
1answer
231 views

Whenever I type some wrong command, my terminal tries to run that command in the background

Something strange started happening to my terminal. Whenever I type some wrong command it tries to run that command in the background. hegeek@colinux: ~# l [9]+ Stopped l thegeek@colinux: ~# ...