Linux bg Command- Run Background Process, cmd Example

Tutorials

Linux-commands

Topic

What is Linux bg Command?

Explanation

bg COMMAND:
     bg command is used to place a job in background. User can run a job in the background by adding a "&" symbol at the end of the command.

SYNTAX:
  The Syntax is
     bg [options] [job]

OPTIONS:

-l	Report the process group ID and working directory of the jobs.
-p	Report only the process group ID of the jobs.
-x	Replace any job_id found in command or arguments with the corresponding process group ID, then execute command passing it arguments.
job	Specifies the job that want to run in the background.

EXAMPLE:

To Run a process in background
```
kmail- start the email client application.
```
Press ctrl+z to stop the current job.
Now just type bg to move last stopped job to background.
To move the specified job to back ground:
Lets start some three jobs and suspend those process in background.
```
kmail- start the email client application.
```
Press ctrl+z to stop the current job.
```
xmms- music player application.
```
Press ctrl+z to stop the current job.
```
sleep 120- a dummy job.
```
Press ctrl+z to stop the current job.
```
jobs
```
The above command will display the jobs in the shell.
```
[1]   Stopped                 kmail
[2]-  Stopped                 xmms
[3]+  Stopped                 sleep 120
```
```
bg 2
```
The above command will start running the xmms application. In such way you can start running the specific background process.
```
jobs
[1]-  Stopped                 kmail
[2]   Running                 xmms &
[3]+  Stopped                 sleep 120
```

bg Linux Commands