VMS Help SHOW, SYMBOL, Qualifiers, /ALL  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Displays the current values of all symbols in the specified
    symbol table (/LOCAL or /GLOBAL). If you specify the /ALL
    qualifier and do not specify either the /LOCAL or the /GLOBAL
    qualifier, the SHOW SYMBOL command displays the contents of the
    local symbol table for the current command level.