I'm running up against the pipe buffer doing this:

      my $success = run 
          [$echo => -e => "\'" => join("\n", @iptout) => "\'"], 
          '|', [$ipt_cmd => 'iptables-restore'], 
          '>', \my $cmdout, '2>&1';

[download]

Error:

exec failed: Argument list too long at ./firewall.pl line 852

So, I figured I'd try this:

      my $success = run 
          [$ipt_cmd => 'iptables-restore'], 
          '>', \my $cmdout, '2>&1',
          '<<<', '${', [$echo => -e => "\'" => join("\n", @iptout) => 
+"\'"], '}';

[download]

Error:

No such file or directory: open( <<, 0x000 ) at ./firewall.pl line 852

But I can't figure out how to get it in proper syntax for IPC::Run? Also, per the limit I'm hitting 'man 7 pipe (I'm running 3.10+ on 64 bit, but this is the latest pipe manpage): In Linux versions before 2.6.11, the capacity of a pipe was the same as the system page size (e.g., 4096 bytes on i386). Since Linux 2.6.11, the pipe capacity is 65536 bytes.

In reply to IPC::Run / bash pipe by ag4ve

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