12-01-2005
How to output the results of the AT command - properly!
Hi,
I am new to UNIX and I am more used to simple commands like those in VMS.
One of them is the ability to get the output from a job using the /out=<file> command in VMS.
I want to submit a job (a set of unix commands) using the AT command but to get the output in a file like that used in VMS.
Now I know many of you are saying, "just redirect it using the '>' character'. I tried this and it's not producing what I expected. I don't think it's as simple as that.
For example (the qdesign command is a powerhouse (COGNOS) command, and not a unix command).
Here is my BAT file ...
#!/bin/csh
/bin/date
################################################################
# Recompile global QUICK screens, for Sydney
qdesign dict=/mis/sydmips/obj/phd.pdc << 'flag1'
use /mis/sydmips/obj/compilemips.qks nolist
exit
'flag1'
I've tried submitting this with ...
$ at -c -f compile.bat now > compile.out
I get only the line that says it submitted the command
$ echo compile.out | at -c -m now
I get an email to say that it was "run", but no standard output of the BAT file!
$ at -c -m now < compile.bat
Again I get a job number, an email to say it ran but no actual output.
How do I get actual output from the compile.bat routine, like as if I was running it online!?
Thank you
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vmsish(3pm) Perl Programmers Reference Guide vmsish(3pm)
NAME
vmsish - Perl pragma to control VMS-specific language features
SYNOPSIS
use vmsish;
use vmsish 'status'; # or '$?'
use vmsish 'exit';
use vmsish 'time';
use vmsish 'hushed';
no vmsish 'hushed';
vmsish::hushed($hush);
use vmsish;
no vmsish 'time';
DESCRIPTION
If no import list is supplied, all possible VMS-specific features are assumed. Currently, there are four VMS-specific features available:
'status' (a.k.a '$?'), 'exit', 'time' and 'hushed'.
If you're not running VMS, this module does nothing.
"vmsish status"
This makes $? and "system" return the native VMS exit status instead of emulating the POSIX exit status.
"vmsish exit"
This makes "exit 1" produce a successful exit (with status SS$_NORMAL), instead of emulating UNIX exit(), which considers "exit 1" to
indicate an error. As with the CRTL's exit() function, "exit 0" is also mapped to an exit status of SS$_NORMAL, and any other
argument to exit() is used directly as Perl's exit status.
"vmsish time"
This makes all times relative to the local time zone, instead of the default of Universal Time (a.k.a Greenwich Mean Time, or GMT).
"vmsish hushed"
This suppresses printing of VMS status messages to SYS$OUTPUT and SYS$ERROR if Perl terminates with an error status, and allows
programs that are expecting "unix-style" Perl to avoid having to parse VMS error messages. It does not suppress any messages from
Perl itself, just the messages generated by DCL after Perl exits. The DCL symbol $STATUS will still have the termination status, but
with a high-order bit set:
EXAMPLE:
$ perl -e"exit 44;" Non-hushed error exit
%SYSTEM-F-ABORT, abort DCL message
$ show sym $STATUS
$STATUS == "%X0000002C"
$ perl -e"use vmsish qw(hushed); exit 44;" Hushed error exit
$ show sym $STATUS
$STATUS == "%X1000002C"
The 'hushed' flag has a global scope during compilation: the exit() or die() commands that are compiled after 'vmsish hushed' will be
hushed when they are executed. Doing a "no vmsish 'hushed'" turns off the hushed flag.
The status of the hushed flag also affects output of VMS error messages from compilation errors. Again, you still get the Perl
error message (and the code in $STATUS)
EXAMPLE:
use vmsish 'hushed'; # turn on hushed flag
use Carp; # Carp compiled hushed
exit 44; # will be hushed
croak('I die'); # will be hushed
no vmsish 'hushed'; # turn off hushed flag
exit 44; # will not be hushed
croak('I die2'): # WILL be hushed, croak was compiled hushed
You can also control the 'hushed' flag at run-time, using the built-in routine vmsish::hushed(). Without argument, it returns the
hushed status. Since vmsish::hushed is built-in, you do not need to "use vmsish" to call it.
EXAMPLE:
if ($quiet_exit) {
vmsish::hushed(1);
}
print "Sssshhhh...I'm hushed...
" if vmsish::hushed();
exit 44;
Note that an exit() or die() that is compiled 'hushed' because of "use vmsish" is not un-hushed by calling vmsish::hushed(0) at
runtime.
The messages from error exits from inside the Perl core are generally more serious, and are not suppressed.
See "Perl Modules" in perlmod.
perl v5.16.2 2012-10-11 vmsish(3pm)