When you have finished debugging the program, use the detach command to detach dbx from the program. The program then resumes running independently of dbx unless you specify the -stop option when you detach it.
You can detach a process and leave it in a stopped state while you temporarily apply other /proc-based debugging tools that might be blocked when dbx has exclusive access. For example:
(dbx) oproc=$proc # Remember the old process ID (dbx) detach -stop (dbx) /usr/proc/bin/pwdx $oproc (dbx) attach $oproc
For more information, see detach Command.