nohup Linux Command with Examples

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7 years ago

Overview

In this tutorial, we will learn nohup Linux Command. nohup stands for no hang-up signals. We use this command to run servers in the background ( & ) and continue to run even after exiting the Terminal or Konsole.

nohup Linux command

We use this nohup to run a command and ignore hang-up signals. Basically, we are making the command that we run immune to hang-up signals. Additionally, we can redirect or append the output to ‘nohup.out’ file.

To know the help documentation, type the help command switch or the man page for the command.

$ nohup –help

To see the man page, type:

$ man nohup

Examples

# Starting Application Server

Let’s see an example usage of the command. We will use the nohup command to start the JBoss application server and redirect the output to the nohup.out file.

$ nohup ./standalone.sh & > nohup.out

standalone.sh is the JBoss standalone server startup script to start the server in standalone mode. & will make the application server process run in the background. nohup will make the server immune to signals. We can notice that the server continues to run even if we exit the Terminal or even if we log out from the system.