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inc/IPC/Cmd.pm  view on Meta::CPAN

    my $cmd = "$full_path -b theregister.co.uk";
    my $cmd = [$full_path, '-b', 'theregister.co.uk'];

    ### in scalar context ###
    if( run(command => $cmd, verbose => 0) ) {
        print "fetched webpage succesfully\n";
    }


    ### in list context ###
    my( $succes, $error_code, $full_buf, $stdout_buf, $stderr_buf ) =
            run( command => $cmd, verbose => 0 );

    if( $success ) {
        print "this is what the command printed:\n";
        print join "", @$full_buf;
    }


    ### don't have IPC::Cmd be verbose, ie don't print to stdout or
    ### stderr when running commands -- default is '0'
    $IPC::Cmd::VERBOSE = 0;

=head1 DESCRIPTION

IPC::Cmd allows you to run commands, interactively if desisered,
platform independant but have them still work.

The C<can_run> function can tell you if a certain binary is installed
and if so where, whereas the C<run> function can actually execute any
of the commands you give it and give you a clear return value, as well

inc/My/Tests/Below.pm  view on Meta::CPAN

use IPC::Open3;
use File::Spec;
use Fatal qw(mkdir chdir);

=begin internals

=head2 Tests over the __END__ test section for real modules

=head3 run_perl($filename)

Runs Perl on $filename, returning what we got on stdout / stderr.
$? is also set.

=cut

sub run_perl {
    my ($filename) = @_;
    my ($stdin, $stdout) = map { new IO::Handle } (1..2);
    my ($perl) = ($^X =~ m/^(.*)$/); # Untainted
    my $pid = open3($stdin, $stdout, $stdout,
          $perl, (map { -I => $_ } @INC), '-Tw', $filename);