SYSMAN displays parameters in decimal unless you specify the /HEX
    qualifier. ASCII values are always displayed in ASCII.

    Abbreviations for parameter names must be unique because SYSMAN
    displays the first parameter matching the abbreviation. Ambiguity
    checks do not occur. For example, a specification of PARAMETERS
    SHOW GBL displays the GBLSECTIONS parameter. To display the
    GBLPAGFIL parameter, you must specify PARAMETERS SHOW GBLPAGF
    to avoid displaying the GBLPAGES parameter.

    You can use a period (.)  to indicate that you want to work with
    the system parameter that you specified in the last PARAMETERS
    SET or PARAMETERS SHOW command.