The //**jobs**// command in Linux and Unix-like systems is used to display the status of the current shell's background jobs. A background job is a process that runs in the background rather than in the foreground.
Here are a few examples of how the jobs command can be used in //**Linux**//:
- Display the status of all background jobs: **jobs**
- Display the status of a specific background **job: jobs -p %2** (this will display the status of the second background job)
- Bring a background job to the foreground: **fg %2** (this will bring the second background job to the foreground)
- Send a background job to the background: **bg %2** (this will send the second background job to the background)
When you run a command in the Linux terminal with an ampersand (**&**) at the end of it, the command is run in the background. The jobs command will display the status of these background jobs. The **fg** command can be used to bring a background job to the foreground, and the **bg** command can be used to send a background job to the background.
You can also check the **job**'s status by its process id, for example:
jobs -p 1234567
This command will give you the status of the **job** with process id 12345
It's also possible to get the job id by using **[[unix_commands:ps|ps]]** command and then check the status with jobs command
ps -e | grep "command"
This command will give you the process id of the command, you can then use the process id with **jobs -p** command to get the status of the job.
----
Similar to Linux, the **jobs** command in FreeBSD is used to display the status of running and stopped background jobs. The jobs command in FreeBSD uses the **-l** option to display the status of a specific background job instead of the **-p** option used in Linux. Other than that, the //**basic**// usage and functionality of the **jobs** command is similar in both Linux and FreeBSD.
Here are a few examples of how the **jobs** command can be used in //**FreeBSD**//:
- Display the status of all background jobs: **jobs**
- Display the status of a specific background **job: jobs -l %2** (this will display the status of the second background job)
- Bring a background job to the foreground: **fg %2** (this will bring the second background job to the foreground)
- Send a background job to the background: **bg %2** (this will send the second background job to the background)
To start a background job, you can run a command followed by an ampersand (**&**)
find / -name "*.txt" &
To check the status of running background jobs
jobs
The output will look like:
[1]+ Running find / -name "*.txt" &
To bring a background job to foreground
fg %1
To stop a background job
kill %1
**jobs** command is useful for managing background jobs in a terminal. It allows you to see what jobs are running and stopped, bring a background job to the foreground, and stop or terminate background jobs.