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:
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 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:
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
The output will look like:
+ Running find / -name "*.txt" &
To bring a background job to foreground
To stop a background job
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.