> "JG" == Jim Gibson writes:
JG> The unless construct above is correct. The 'until' construct is
JG> not. 'until' can only occur at the end of a block preceded by 'do' or
JG> at the end of a statement as a modifier.
JG> do {
JG> ...
JG> } until( condition );
until is just
Thanks Jim
I got the understanding from this sample code as well:
#!/usr/bin/perl
use warnings;
use strict;
print "Enter your age : ";
unless ((my $age = ) < 18) {
print "you can vote \n";
}
Thanks
Jatin
On 8/30/2010 11:15 AM, Jim Gibson wrote:
At 9:53 AM +0530 8/30/10, Jatin Davey wrote:
We are out of contest in here.
I know how to run open3, but I don't know how to test it. Repeating
use strict;
use warnings;
use IPC::Open3;
use IO::Handle;
use Test::More;
use Test::Trap;
sub shell_run {
my ($stdin, $stdout, $stderr) = map {IO::Handle->new} (0..2);
print "";
open
At 9:53 AM +0530 8/30/10, Jatin Davey wrote:
Hi All
I a newbie to perl. Reading through some of its basics on if
constructs , while constructs and so i also found a the unless and
until constructs.
let me take the if construct ,
basically it is like this : if () { .}
now in the above
On Aug 28, 10:42 pm, ole...@gmail.com (marcos rebelo) wrote:
> the idea is to process the STDOUT ad the STDERR.
>
> open don't do it
>
I was afraid you'd say that...
open3 is very liable to deadlock since you're trying to read from
both stderr and stdout. You'll very likely want to use IO::Selec
Hi All
I a newbie to perl. Reading through some of its basics on if constructs
, while constructs and so i also found a the unless and until constructs.
let me take the if construct ,
basically it is like this : if () { .}
now in the above construct if the condition evaluates to *true*
At 8:17 PM +0530 8/29/10, Kaushal Shriyan wrote:
I am referring to http://www.perl.org/books/beginning-perl/. so I am
planning to read upto chapter 10. is it recommended to even go beyond
chapter 10.
Please suggest.
I have not read that online resource, but looking at the contents I
would re
On Sun, Aug 29, 2010 at 7:58 PM, Chas. Owens wrote:
> On Sun, Aug 29, 2010 at 09:41, Kaushal Shriyan
> wrote:
> snip
>> Thanks a lot Chas. Understood now.
>> Also what does $_ default variable means exactly, any example would
>> really help me understand it
> snip
>
> The default variable is set
On Sun, Aug 29, 2010 at 09:41, Kaushal Shriyan wrote:
snip
> Thanks a lot Chas. Understood now.
> Also what does $_ default variable means exactly, any example would
> really help me understand it
snip
The default variable is set or read by many Perl 5 functions. For
instance, if you use the rea
On Sun, Aug 29, 2010 at 7:06 PM, Chas. Owens wrote:
> On Sun, Aug 29, 2010 at 09:23, Kaushal Shriyan
> wrote:
>> On Sun, Aug 29, 2010 at 6:11 PM, Chas. Owens wrote:
>>> On Sun, Aug 29, 2010 at 07:15, Kaushal Shriyan
>>> wrote:
Hi
Can someone please explain me with an example of
On Sun, Aug 29, 2010 at 09:23, Kaushal Shriyan wrote:
> On Sun, Aug 29, 2010 at 6:11 PM, Chas. Owens wrote:
>> On Sun, Aug 29, 2010 at 07:15, Kaushal Shriyan
>> wrote:
>>> Hi
>>>
>>> Can someone please explain me with an example of the usage chomp ()
>>> builtin function in perl.
>> snip
>>
>>
On Sun, Aug 29, 2010 at 6:11 PM, Chas. Owens wrote:
> On Sun, Aug 29, 2010 at 07:15, Kaushal Shriyan
> wrote:
>> Hi
>>
>> Can someone please explain me with an example of the usage chomp ()
>> builtin function in perl.
> snip
>
> The chomp function removes whatever is in the $/ variable from the
On Sun, Aug 29, 2010 at 07:15, Kaushal Shriyan wrote:
> Hi
>
> Can someone please explain me with an example of the usage chomp ()
> builtin function in perl.
snip
The chomp function removes whatever is in the $/ variable from the
argument passed in (or $_ if no argument is passed in). The defau
On Sunday 29 August 2010 14:15:52 Kaushal Shriyan wrote:
> Hi
>
> Can someone please explain me with an example of the usage chomp ()
> builtin function in perl.
Yes, here you go. Let's suppose you want to write a small grep programs that
only prints all lines ending with the character "\". You
Hi
Can someone please explain me with an example of the usage chomp ()
builtin function in perl.
Thanks
Kaushal
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/
15 matches
Mail list logo
