Hello;
I'm trying to obtain line-by-line output from a command pipe in perl.
Unfortunately, I am firmly held to 5.8.8 version of perl on this
specific machine :-(
Apparently, creating an array for my command prevents me from
including the final pipe symbol when trying to use the three-argument
form of open when using an array for my command rather than a scalar.
code snippet #1:
my @cmd = ("make", "target_name", "2>&1");
open my $fh, @cmd, "|" or die "blah: $!\n"; fails, "Unknown open() mode '5'"
code snippet #2:
my @cmd = ("make", "target_name", "2>&1", "|");
open my $fh, @cmd or die "blah: $!\n"; fails, "Unknown open() mode '5'"
Is it true that for me to use command pipes for line-by-line output
that I have to abandon the list form of the open or system command and
use the scalar form?
Bottom line: I'd like to have a non-scalar form of the open and
line-by-line handling of the output of the command pipe if that is
possible.
Thanks,
Ken Wolcott
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