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NAME    [Toc]    [Back]

       bg - Runs jobs in the background

SYNOPSIS    [Toc]    [Back]

       bg [job_id...]


       The  C shell has a built-in version of the bg command.  If
       you are using the C shell, and want to guarantee that  you
       are using the command described here, you must specify the
       full path /usr/bin/bg.  See the csh(1) reference page  for
       a description of the built-in command.

STANDARDS    [Toc]    [Back]

       Interfaces  documented  on  this reference page conform to
       industry standards as follows:

       bg:  XCU5.0

       Refer to the standards(5) reference page for more information
 about industry standards and associated tags.

OPTIONS    [Toc]    [Back]


OPERANDS    [Toc]    [Back]

       Specifies the job to be resumed as a background job. If no
       job_id operand is given, the most recently  suspended  job
       is  used.  The  format  of job_id is described in the Jobs
       section of the ksh(1) reference page.

DESCRIPTION    [Toc]    [Back]

       If job control is enabled (see the description of  set  -m
       in the ksh(1) reference page), the bg utility resumes suspended
 jobs from the current environment by  running  them
       as  background  jobs.  If the job specified by job_id is a
       job already running in the background, the bg utility  has
       no effect and will exit successfully.

       Using  bg  to  place  a job into the background causes its
       process ID to become "known in the current shell execution
       environment", as if it had been started as an asynchronous
       list.  See the Jobs section of the ksh(1) reference  page.

RESTRICTIONS    [Toc]    [Back]

       If  job  control is disabled, the bg utility exits with an
       error and no job is placed  in  the  background.   The  bg
       utility  does not work as expected when it is operating in
       its own utility execution environment because  that  environment
 has no suspended jobs.

EXIT STATUS    [Toc]    [Back]

       The following exit values are returned: Successful completion.
  An error occurred.


       The following environment variables affect  the  execution
       of  bg: Provides a default value for the internationalization
 variables that are unset or null. If LANG is unset or
       null,  the  corresponding value from the default locale is
       used.  If any of the internationalization  variables  contain
 an invalid setting, the utility behaves as if none of
       the variables had been defined.  If  set  to  a  non-empty
       string value, overrides the values of all the other internationalization
 variables.  Determines the locale for  the
       interpretation of sequences of bytes of text data as characters
 (for example, single-byte as opposed  to  multibyte
       characters  in  arguments).  Determines the locale used to
       affect the format  and  contents  of  diagnostic  messages
       written  to  standard  error.   Determines the location of
       message catalogues for the processing of LC_MESSAGES.

SEE ALSO    [Toc]    [Back]

       Commands:  csh(1), fg(1), jobs(1), kill(1), ksh(1), Bourne
       shell sh(1b), POSIX shell sh(1p), wait(1)

       Standards:  standards(5)

[ Back ]
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