need help with system command and single quote

grasshopper_perl has asked for the wisdom of the Perl Monks concerning the following question:

Hi, I need to make a loop to open several web pages.
* The issue I have is $i in the last line of the script below does not work. Any help is appreciated.
-------------------------------------------------

#!c:\perl\bin\perl -w
use strict; 
my $i = 0;
while ($i < 10) {
  $i++;
  print "$i\n";
  system('"C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://abc
+.com/bbs?=x&b=x&mid=$i');
}
[download]

2005-02-22 Janitored by Arunbear - added code tags, as per Monastery guidelines

Comment on need help with system command and single quote Download Code

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Re: need help with system command and single quote by Zaxo (Archbishop) on Feb 22, 2005 at 08:44 UTC
Single quotes do not interpolate variables. You need to make the second argument an argumenr with a comma, and to double-quote that string. `system( 'C:\Program Files\Internet Explorer\IEXPLORE.EXE', "http://abc.com/bbs?=x&b=x&mid=$i") or next;` [download] There may still be problems with winders shell trickiness, but there shouldn't be. After Compline, Zaxo	[reply] [d/l]
Re^2: need help with system command and single quote by VSarkiss (Monsignor) on Feb 22, 2005 at 16:55 UTC
An alternative, in case the OP does run into "winders shell trickiness", is to use `qq`: `system( qq{"C:/Program Files/Internet Explorer/IEXPLORE.EXE" 'http://abc.c +om/bbs?=x&b=x&mid=$i'} );` [download] Untested, but should work. Do not rebuke them with harsh words ... but rather lead them gently - with URLs - so that they may learn wisdom.	[reply] [d/l] [select]
Re: need help with system command and single quote by lidden (Curate) on Feb 22, 2005 at 08:40 UTC
Change it to: `system('"C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://abc.c +om/bbs?=x&b=x&mid='.$i);` [download] and it chould work.	[reply] [d/l]
Re: need help with system command and single quote by Roy Johnson (Monsignor) on Feb 22, 2005 at 15:27 UTC
Just a style note: the construct you have above -- iteration -- suggests a for loop: `for my $i (1..10) { # print and system }` [download] Caution: Contents may have been coded under pressure.	[reply] [d/l]
Re: need help with system command and single quote by rev_1318 (Chaplain) on Feb 22, 2005 at 09:05 UTC
Any reason why you don't use something like LWP? Paul	[reply]
Re^2: need help with system command and single quote by Corion (Patriarch) on Feb 22, 2005 at 09:08 UTC
My guess is that LWP merely downloads the page, instead of displaying it nicely in a browser window. Some times, users want data displayed. Which is why I wrote HTML::Display.	[reply]