Jul 20, 2023

Check for errors when running a command through multiple pipes

Normally if a part of a pipe fails, depending on the location, it won’t be detected. This breaks down a command involving pipes and runs each command separately.

It uses open3 to run each chunk of the pipe.

use IOMultiPipe;

my $pipes = IOMultiPipe->new;

#This sets the pipe that will be run.
$pipes->set'sed s/-// | sed s/123/abc/ | sed s/ABC/abc/';
if $pipes->error
    print "Error!\n";

#'123-ABCxyz' through the command set above.
my $returned=$pipes->run'123-ABCxyz';

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