Here is a program that prints whatever you send in via the command line 10 times

#!/usr/bin/perl -w

# Program: printsth
print join (' ', @ARGV), $/ for (1..10);

[download]

Now I call this program inside another program and capture it's output 


#!/usr/bin/perl -w

# Program: captpipe

my $arg = "hi there";

print ("Going to call another perl program and capture it's output\n")
+;

open (PIPE,"printsth $arg | ") or die $!;

while (<PIPE>) {
        print;
}

[download]

when you just run  printsth hi there you will get  hi there\n 10 times.

when you execute the captpipe script you will see the same output.

Output 

[sk]% captpipe
Going to call another perl program and capture it's output
hi there
hi there
hi there
hi there
hi there
hi there
hi there
hi there
hi there
hi there

[download]

this is a better way to capture output than using backticks!

In reply to Re: lines written to stdout by a backtick command by sk
in thread lines written to stdout by a backtick command by oceanic

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