Perl Guru Forums: Perl Programming Help: Regular Expressions: get size in a variable

CGI/Perl Guide | Learning Center | Forums | Advertise | Login

Site Search: in


	MAIN INDEX	SEARCH POSTS	WHO'S ONLINE	LOG IN

Home: Perl Programming Help: Regular Expressions:
get size in a variable

sajanagr
Novice

Jan 26, 2010, 11:58 PM

Post #1 of 4 (1889 views)

get size in a variable	Can't Post

Hi
I have a simple query to get the size output of a command into a variable. This is what i have tried :
The command output is like :

Code

   68.58G

Regular expression :

Code

if ($out =~ /(\d*\.\d*\S)/){ 
           $out=$1; 
}

This seemed to work earlier and i hav updated perl and it now gives me output ' .p '; I don't seem to understand the issue.

Kindly help!!
Not all who wander are lost ---- /me

shawnhcorey
Enthusiast

Jan 27, 2010, 5:10 AM

Post #2 of 4 (1882 views)

Re: [sajanagr] get size in a variable [In reply to]	Can't Post

Print out the contents of $out. I think you'll find it has at least two periods in it.

__END__

I love Perl; it's the only language where you can bless your thingy.

Perl documentation is available at perldoc.perl.org. The list of standard modules and pragmatics is available in perlmodlib.

Get Markup Help. Please note the markup tag of "code".

sajanagr
Novice

Jan 27, 2010, 5:20 AM

Post #3 of 4 (1880 views)

Re: [shawnhcorey] get size in a variable [In reply to]	Can't Post

The issue has been solved. The expression was fine, but not perfect. Checked out the output of $out and solved it. Modified the expression by -

Code

$out =~  /(\d+\.\d+G\s+)/

Not all who wander are lost ---- /me

shawnhcorey
Enthusiast

Jan 27, 2010, 5:53 AM

Post #4 of 4 (1875 views)

Re: [sajanagr] get size in a variable [In reply to]	Can't Post

Code

$out =~  /(\d+\.\d+G\b);/

\b works even at the end of a string.

__END__

I love Perl; it's the only language where you can bless your thingy.

Perl documentation is available at perldoc.perl.org. The list of standard modules and pragmatics is available in perlmodlib.

Get Markup Help. Please note the markup tag of "code".

Search for (options)

Web Applications & Managed Hosting Powered by Gossamer Threads
Visit our Mailing List Archives