Ubuntu – How to run script via SSH that doesn’t end when I close connection

bashgnu-screennohupsshUbuntu

I need to run script, that takes long time to execute, or I just want it to run forever. I can't just SSH to my machine, because when I disconnect it stops running.

Is there any way to run script that isn't dependent on the shell that started it?

I'm using Ubuntu 9.04.

Best Answer

You can run the command with the nohup command before it. You can also run it in 'screen', which will allow you reattach the terminal.

For example:

ssh mySever 'nohup bash myscript.sh'

Or just ssh into and run the nohup command. It should keep running even when you disconnect. This is because the nohup will intercept the SIGHUP singal (hangup).

Screen is a bit more involved, but for the 20 minutes it might take you to learn the basics, it is one of the most useful tools out there. Here is a tutorial.

Related Solutions

Linux – nohup/screen an already-started process

If you're using Bash, you can run disown -h job

disown
disown [-ar] [-h] [jobspec ...]
Without options, each jobspec is removed from the table of active jobs. If the -h option is given, the job is not removed from the table, but is marked so that SIGHUP is not sent to the job if the shell receives a SIGHUP. If jobspec is not present, and neither the -a nor -r option is supplied, the current job is used. If no jobspec is supplied, the -a option means to remove or mark all jobs; the -r option without a jobspec argument restricts operation to running jobs.

Bash – How to avoid the ./ when executing a shell script

It's a bad idea to put the current directory into your path. Move your scripts that you want to frequently run into ~/bin and then add ~/bin to your path.

To do this, add:

export PATH=$PATH:~/bin

to ~/.bash_profile.

Best Answer

Related Solutions

Linux – nohup/screen an already-started process

Bash – How to avoid the ./ when executing a shell script

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