Re^2: execution log

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Re^3: execution log by johngg (Canon) on May 07, 2006 at 12:45 UTC
Not in the script, no. You use that syntax from the command-line to invoke the script, either in a *nix shell or from a DOS prompt, except under DOS you invoke Perl and give it your script name as the first argument. I normally use Solaris but I managed to turf the kids off the PC to try out what happens under Windows XP. I put this little script together; I called it fred `use strict; use warnings; print "The beginning\n"; my $flag = 1; warn "Flag set\n" if $flag; die "Farewell, cruel world\n";` [download] and ran it firstly without any redirection of STDOUT or STDERR like this `C:> perl fred The beginning Flag set Farewell, cruel world C:>` [download] I then tried redirecting STDOUT to a file `C:> perl fred > fred.out Flag set Farewell, cruel world C:> type fred.out The beginning C:>` [download] Finally, I tried redirecting STDERR as well `C:> perl fred > fred.out 2>&1 C:> type fred.out The beginning Flag set Farewell, cruel world C:>` [download] Astonishingly, it seems to work just like Solaris. All they need to do now is get their slashes the right way round and we'll be laughing. Cheers, JohnGG	[reply] [d/l] [select]

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Re^3: execution log
by johngg (Canon) on May 07, 2006 at 12:45 UTC

use strict;
use warnings;

print "The beginning\n";

my $flag = 1;
warn "Flag set\n" if $flag;

die "Farewell, cruel world\n";
[download]

and ran it firstly without any redirection of STDOUT or STDERR like this

C:> perl fred
The beginning
Flag set
Farewell, cruel world

C:>
[download]

I then tried redirecting STDOUT to a file

C:> perl fred > fred.out
Flag set
Farewell, cruel world

C:> type fred.out
The beginning

C:>
[download]

Finally, I tried redirecting STDERR as well

C:> perl fred > fred.out 2>&1

C:> type fred.out
The beginning
Flag set
Farewell, cruel world

C:>
[download]

Astonishingly, it seems to work just like Solaris. All they need to do now is get their slashes the right way round and we'll be laughing.

Cheers,

JohnGG