Library /sys$common/syshlp/basichelp.hlb ON, ERROR, GOBACK  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  After BASIC executes an ON ERROR GO BACK in  a  subprogram  or  DEF,
  control transfers to the calling (main) program when an error occurs
  under certain conditions.

  Example

  ON ERROR GO BACK

  Additional Information (explode) :

• Syntax