Switches control from the current process to another process in
   your job.

   Format

     ATTACH  process-name [/qualifier...]

1  –  Command Qualifiers

1.1    /IDENTIFICATION

   /IDENTIFICATION=pid

   Specifies the process identification (PID) of the process to which
   you want to attach the terminal. You can omit the leading zeros
   when you specify a PID.

   If you specify the /IDENTIFICATION qualifier, do not specify the
   process name parameter or the /PARENT qualifier. If you do not
   specify a qualifier, you must specify a process name.

1.2    /PARENT

   Specifies that the process you want to attach to is the original
   (parent) process.

   If you specify the /PARENT qualifier, do not specify the process
   name parameter or the /IDENTIFICATION qualifier. If you do not
   specify a qualifier, you must specify a process name.

2  –  Example

   MAIL> SPAWN DTM REVIEW
   Collection name: MAIL_COLL
   Collection MAIL_COLL with 1 test was created on 29-JUL-85 15:13:54
   by the command:
     CREATE COLLECTION MAIL_COLL MAIL_TEST "Recording MAIL on the terminal"
     Last review status = not previously reviewed
     Success count = 0
     Unsuccessful count = 1
     New test count = 0
     Updated test count = 0
     Comparisons aborted = 0
     Test not run count = 0

   Result Description MAIL_TEST  Comparison Status : Unsuccessful

   DTM_REVIEW> ATTACH/PARENT
   You have 0 new messages.
   MAIL>

   This example uses the MAIL SPAWN command to create a subprocess
   executing a Digital Test Manager Review subsystem to review
   collection MAIL_COLL. The Review subsystem ATTACH command is then
   used to attach the terminal back to the mail session, the parent
   process.