Thank you all for the help.
Figured it out.
To error is human. To really screw things up required a computer!
Perl 5: how to read rom a pipe and command line parameter at the same time:
PeadPipe.pm
package ReadPipe;
require Exporter;
use strict;
use warnings;
use diagnostics;
# use diagnostics "-verbose";
use Term::ReadKey qw ( ReadKey ReadMode );
# our @ISA = qw( Exporter );
use Exporter qw(import);
our @EXPORT = qw(); # symbols to be exported by default (space-
+separated)
our $VERSION = 0.01;
our @EXPORT_OK = qw( ReadPipe );
# Refernece: https://metacpan.org/pod/Term::ReadKey
# ReadMode MODE [, Filehandle]
#
# Takes an integer argument, which can currently be one of the foll
+owing values:
#
# 0 Restore original settings.
# 1 Change to cooked mode.
# 2 Change to cooked mode with echo off.
# (Good for passwords)
# 3 Change to cbreak mode.
# 4 Change to raw mode.
# 5 Change to ultra-raw mode.
# (LF to CR/LF translation turned off)
#
# Or, you may use the synonyms:
#
# restore
# normal
# noecho
# cbreak
# raw
# ultra-raw
Thank you all for the help.
Figured it out.
To error is human. To really screw things up required a computer!
Perl 5: how to read rom a pipe and command line parameter at the same time:
PeadPipe.pm
package ReadPipe;
require Exporter;
use strict;
use warnings;
use diagnostics;
# use diagnostics "-verbose";
use Term::ReadKey qw ( ReadKey ReadMode );
# our @ISA = qw( Exporter );
use Exporter qw(import);
our @EXPORT = qw(); # symbols to be exported by default (space-
+separated)
our $VERSION = 0.01;
our @EXPORT_OK = qw( ReadPipe );
# Refernece: https://metacpan.org/pod/Term::ReadKey
# ReadMode MODE [, Filehandle]
#
# Takes an integer argument, which can currently be one of the foll
+owing values:
#
# 0 Restore original settings.
# 1 Change to cooked mode.
# 2 Change to cooked mode with echo off.
# (Good for passwords)
# 3 Change to cbreak mode.
# 4 Change to raw mode.
# 5 Change to ultra-raw mode.
# (LF to CR/LF translation turned off)
#
# Or, you may use the synonyms:
#
# restore
# normal
# noecho
# cbreak
# raw
# ultra-raw
#
#
# ReadKey MODE [, Filehandle]
#
# Takes an integer argument, which can currently be one of the foll
+owing values:
#
# 0 Perform a normal read using getc
# -1 Perform a non-blocked read
# >0 Perform a timed read
sub ReadPipe () {
# if data is not present in the pipe (STDIN), return an empty sting
# if data is present, read until an EOF is detected, then return th
+e
# string, less the EOF mark
my $Pipe = "";
my $Key = "";
ReadMode 4; # Turn off controls keys
if ( defined ( $Key = ReadKey ( -1, \*STDIN ) ) ) {
$Pipe = $Key;
while ( <STDIN> ) { $Pipe .= $_ }; # reads until EOF detected
}
ReadMode 1; # Reset tty mode before exiting
chomp ( $Pipe );
# print STDERR "\$Pipe = <$Pipe>\n";
return $Pipe;
}
ReadAPipe.pl
#!/usr/bin/perl
# Note: check out Pause.pm for reading empty keys
use lib '/home/linuxutil';
use strict;
use warnings;
use ReadPipe qw ( ReadPipe );
my $Pipe= "";
# while (<STDIN>){ $Pipe .= $_; } # hangs if pipe is empty
$Pipe = ReadPipe::ReadPipe ();
print "This was read from the pipe:\n";
print "<$Pipe>\n\n";
print "This was the read from the parameters:\n";
print "<@{ARGV}>\n";
__END__
$ ( echo Hi; sleep 3; echo Bye ) | ./ReadAPipe.pl a b c
This was read from the pipe:
<Hi
Bye>
This was the read from the parameters:
<a b c>
./ReadAPipe.pl a b c
This was read from the pipe:
<>
This was the read from the parameters:
<a b c>
#
#
# ReadKey MODE [, Filehandle]
#
# Takes an integer argument, which can currently be one of the foll
+owing values:
#
# 0 Perform a normal read using getc
# -1 Perform a non-blocked read
# >0 Perform a timed read
sub ReadPipe () {
# if data is not present in the pipe (STDIN), return an empty sting
# if data is present, read until an EOF is detected, then return th
+e
# string, less the EOF mark
my $Pipe = "";
my $Key = "";
ReadMode 4; # Turn off controls keys
if ( defined ( $Key = ReadKey ( -1, \*STDIN ) ) ) {
$Pipe = $Key;
while ( <STDIN> ) { $Pipe .= $_ }; # reads until EOF detected
}
ReadMode 1; # Reset tty mode before exiting
chomp ( $Pipe );
# print STDERR "\$Pipe = <$Pipe>\n";
return $Pipe;
}
ReadAPipe.pl
#!/usr/bin/perl
# Note: check out Pause.pm for reading empty keys
use lib '/home/linuxutil';
use strict;
use warnings;
use ReadPipe qw ( ReadPipe );
my $Pipe= "";
# while (<STDIN>){ $Pipe .= $_; } # hangs if pipe is empty
$Pipe = ReadPipe::ReadPipe ();
print "This was read from the pipe:\n";
print "<$Pipe>\n\n";
print "This was the read from the parameters:\n";
print "<@{ARGV}>\n";
__END__
$ ( echo Hi; sleep 3; echo Bye ) | ./ReadAPipe.pl a b c
This was read from the pipe:
<Hi
Bye>
This was the read from the parameters:
<a b c>
./ReadAPipe.pl a b c
This was read from the pipe:
<>
This was the read from the parameters:
<a b c>
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