(features.info)Job Control Builtins

Job Control Builtins
====================

`bg'
          bg [JOBSPEC]
     Place JOBSPEC into the background, as if it had been started with
     `&'.  If JOBSPEC is not supplied, the current job is used.

`fg'
          fg [JOBSPEC]
     Bring JOBSPEC into the foreground and make it the current job.  If
     JOBSPEC is not supplied, the current job is used.

`jobs'
          jobs [-lpn] [JOBSPEC]
          jobs -x COMMAND [JOBSPEC]

     The first form lists the active jobs.  The `-l' option lists
     process IDs in addition to the normal information; the `-p' option
     lists only the process ID of the job's process group leader.  The
     `-n' option displays only jobs that have changed status since last
     notfied.  If JOBSPEC is given, output is restricted to information
     about that job.  If JOBSPEC is not supplied, the status of all
     jobs is listed.

     If the `-x' option is supplied, `jobs' replaces any JOBSPEC found
     in COMMAND or ARGUMENTS with the corresponding process group ID,
     and executes COMMAND, passing it ARGUMENTs, returning its exit
     status.

`suspend'
          suspend [-f]
     Suspend the execution of this shell until it receives a `SIGCONT'
     signal.  The `-f' option means to suspend even if the shell is a
     login shell.

   When job control is active, the `kill' and `wait' builtins also
accept JOBSPEC arguments.