Hi All,
Can you please let me know the following snippset? why it is used for?
select( STDERR );
$| = 1;
select( STDOUT );
$| = 1;
print STDERR "\nThis is india\n\n";
print STDERR "Usage: This is build";
print STDERR "where: base PL label\n";
and second question
second ques
jitendra B wrote:
Hi All,
Hello,
Can you please let me know the following snippset? why it is used for?
select( STDERR );
Select STDERR as the default filehandle.
$| = 1;
Turn on autoflush for the current default filehandle.
(Redundant because STDERR autoflushes by default.)
selec
On Tue, 9 Jul 2013 13:24:54 +0530
jitendra B wrote:
> Can you please let me know the following snippset? why it is used for?
>
>
> select( STDERR );
Change the default file handle use by `print` and `say` to STDERR. The
default file handle is use when no file handle is specified. Example:
See below
> Hi All,
>
>
> Can you please let me know the following snippset? why it is used for?
>
>
> select( STDERR );
> $| = 1;
> select( STDOUT );
> $| = 1;
> print STDERR "\nThis is india\n\n";
> print STDERR "Usage: This is build";
> print STDERR "where: base PL label\n";
>
> and second
On Tue, Jul 9, 2013 at 9:37 AM, Nathan Hilterbrand wrote:
> I want to open a file read+write mode and change
> > the
> > some content in same file without creating another file and copy to it.
>
You might want to look at the perl "in place mode" [1], so something like
perl -i.bak -pe ' s/BLR/ban
Thank you very much Andy, Nathan, Shawn for your kind help.
I am new to the perl. Why auto-flush is needed here (STDERR autoflushes)?
It will free the memory or something else.
Regards,
Jitendra
On Tue, Jul 9, 2013 at 9:10 PM, Andy Bach wrote:
>
> On Tue, Jul 9, 2013 at 9:37 AM, Nathan Hilt
On Jul 10, 2013 2:01 AM, "jitendra B" wrote:
>
> Thank you very much Andy, Nathan, Shawn for your kind help.
>
> I am new to the perl. Why auto-flush is needed here (STDERR autoflushes)?
>
Probably for consistency with autoflush being enabled for STDOUT, it's also
on with STDERR. It's an optimiza
On Wed, 10 Jul 2013 04:57:44 -0400
shawn wilson wrote:
> On Jul 10, 2013 2:01 AM, "jitendra B" wrote:
> >
> > Thank you very much Andy, Nathan, Shawn for your kind help.
> >
> > I am new to the perl. Why auto-flush is needed here (STDERR
> > autoflushes)?
> >
>
> Probably for consistency with a
On Wed, Jul 10, 2013 at 7:08 AM, Shawn H Corey wrote:
> Auto-flush is a de-optimization. Don't set it.
More "Best Practices" on autoflush (note, the original book "Perl Best
Practices" by Damian Conway is well worth the price. Even for those few you
may not agree with, practices-wise, you'll le
On Wed, 10 Jul 2013 10:49:37 -0500
Andy Bach wrote:
> On Wed, Jul 10, 2013 at 7:08 AM, Shawn H Corey
> wrote:
>
> > Auto-flush is a de-optimization. Don't set it.
>
>
>
> More "Best Practices" on autoflush (note, the original book "Perl Best
> Practices" by Damian Conway is well worth the p
On Wed, Jul 10, 2013 at 9:21 AM, Shawn H Corey wrote:
> On Wed, 10 Jul 2013 10:49:37 -0500
> Andy Bach wrote:
>
>> On Wed, Jul 10, 2013 at 7:08 AM, Shawn H Corey
>> wrote:
>>
>> > Auto-flush is a de-optimization. Don't set it.
>>
>>
>>
>> More "Best Practices" on autoflush (note, the original boo
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