open EXE, qq{/usr/sbin/traceroute -q 1 -w 2 -i dmfe0 $ip_address |}; my @trace = ; my @trace_out = ""; foreach (@trace){ $_ =~ s/\n//; if ( $_ =~ /some|checks|here/ ){ @trace_out = (split /\s+/, $_ ); } }