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name : return
 return [ n ]
       Causes a shell function or `.' script to return to the  invoking
       script with the return status specified by an arithmetic expres-
       sion n.  For example, the following prints `42':

              () { integer foo=40; return "foo + 2" }
              echo $?

       If  n  is omitted, the return status is that of the last command
       executed.

       If return was executed from a trap in a  TRAPNAL  function,  the
       effect  is  different for zero and non-zero return status.  With
       zero status (or after an implicit  return  at  the  end  of  the
       trap),  the shell will return to whatever it was previously pro-
       cessing; with a non-zero status, the shell will behave as inter-
       rupted except that the return status of the  trap  is  retained.
       Note  that the numeric value of the signal which caused the trap
       is passed as  the  first  argument,  so  the  statement  `return
       "128+$1"'  will  return the same status as if the signal had not
       been trapped.
UnknownSec Shell
