bg command in linux is used to place foreground jobs in background.
bg [job_spec ...]
job_spec may be:
%n: Refer to job number n.
%str: Refer to a job which was started by a command beginning with str.
%?str: Refer to a job which was started by a command containing str.
%% or %+: Refer to the current job. fg and bg will operate on this job if no job_spec is given.
%-: Refer to the previous job.
Options for bg command:
- bg [JOB_SPEC] : This command is used to put the mentioned job in background. In the below screenshot, we do following :
- We use jobs command to list all jobs
- We create a process using sleep command, we get its ID as 1.
- We put it in background by providing its ID to bg.
‘sleep 500’ is used to create dummy foreground job.
- bg –help : This command displays help information.