vmsish
Controls VMS-specific language features. Currently,
there are four VMS-specific features available: status ($?), exit, time, and hushed. If you’re not using VMS, then this
module won’t have any affect.
vmsish is shipped with the Perl 5.8 source kit.
For example, without vmsish, you can’t execute a hushed version of exit:
$ perl -e"exit 44;" Non-hushed error exit %SYSTEM-F-ABORT, abort DCL message $ show sym $STATUS $STATUS == "%X0000002C"
When you use vmsish, you get . . . nothing!
$ perl -e"use vmsish qw(hushed); exit 44;"
vmsish implements the following options.
statusCauses
$?andsystemto return the native VMS exit status instead of emulating the POSIX exit status.exitCauses
exit 1to produce a successful exit (with statusSS$_NORMAL) instead of emulating Unixexit(), which considersexit 1as an indication of an error. As with the CRTL’sexit()function,exit 0is also mapped to an exit status ofSS$_NORMAL, and any other argument toexit()is used directly as Perl’s exit status.timeMakes all times relative to the local time zone instead of the default Universal Time (a.k.a. Greenwich Mean Time, or GMT).
hushedSuppresses printing of VMS status messages to
SYS$OUTPUTandSYS$ERRORif Perl terminates with an error status and allows programs that are expecting Unix-style Perl to avoid parsing VMS error messages. It does not supress any messages from Perl itself, just the messages generated by DCL after Perl exits. The DCL symbol$STATUSwill still have the termination status, ...