?
Solved

Capture output but suppress it to screen

Posted on 2003-03-09
2
Medium Priority
?
360 Views
Last Modified: 2008-03-04
Hello,
Using perl with cygwin, i want to run an executable and capture its output but supress what is normally viewed in the console.

Say I run a dos box and type  "program.exe" and the screen outputs:

hello
how are you

What I want is to run "perl.exe test.pl" with the following script

print "this is all that should show on screen"
$output=`program.exe`;

and somehow supress the normal "hello how are you" output from showing on the screen.

Any ideas?

I'll raise points if this proves to be more complicated.
0
Comment
Question by:s_mack
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 

Author Comment

by:s_mack
ID: 8098983
nevermind... my question actually answered itself.

It seems that $output=`program.exe` DOES suppress the video output :P

So first person to put anything remotely intelligent, funny, or something other than "give me the points" gets the points.  Have a good one.
0
 
LVL 26

Accepted Solution

by:
wilcoxon earned 80 total points
ID: 8099022
Yes.  `command` suppresses the output (more precisely, it puts it into $output).

Another option is:

open CMD, 'command |' or die "could not open pipe: $!";
while (<CMD>) {
    # do whatever you want with each line of output
}
close CMD;
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I've just discovered very important differences between Windows an Unix formats in Perl,at least 5.xx.. MOST IMPORTANT: Use Unix file format while saving Your script. otherwise it will have ^M s or smth likely weird in the EOL, Then DO NOT use m…
Checking the Alert Log in AWS RDS Oracle can be a pain through their user interface.  I made a script to download the Alert Log, look for errors, and email me the trace files.  In this article I'll describe what I did and share my script.
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
Six Sigma Control Plans
Suggested Courses

764 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question