c:\cygwin64\home\ken\tmp\pm_11151991_io_select>perl no_woes.pl
[1292] STDIN:  TTY
[1292] STDOUT: TTY
 .------------------------------.
|            Basket            |
+----+-----------------+-------+
| Id | Name            | Price |
+----+-----------------+-------+
|  1 | Dummy product 1 |  24.4 |
|  2 | Dummy product 2 |  21.2 |
|  3 | Dummy product 3 |  12.3 |
+----+-----------------+-------+
|    | Total           |  57.9 |
'----+-----------------+-------'

c:\cygwin64\home\ken\tmp\pm_11151991_io_select>perl no_woes.pl | perl no_woes.pl
[12492] STDIN:  TTY
[12492] STDOUT: PIPE
[496] STDIN:  PIPE
[496] STDOUT: TTY
.------------------------------.
|            Basket            |
+----+-----------------+-------+
| Id | Name            | Price |
+----+-----------------+-------+
|  1 | Dummy product 1 |  24.4 |
|  2 | Dummy product 2 |  21.2 |
|  3 | Dummy product 3 |  12.3 |
+----+-----------------+-------+
|    | Total           |  57.9 |
'----+-----------------+-------'

c:\cygwin64\home\ken\tmp\pm_11151991_io_select>perl no_woes.pl | perl no_woes.pl | perl no_woes.pl
[8268] STDIN:  TTY
[8268] STDOUT: PIPE
[1576] STDIN:  PIPE
[1576] STDOUT: PIPE
[3140] STDIN:  PIPE
[3140] STDOUT: TTY
.------------------------------.
|            Basket            |
+----+-----------------+-------+
| Id | Name            | Price |
+----+-----------------+-------+
|  1 | Dummy product 1 |  24.4 |
|  2 | Dummy product 2 |  21.2 |
|  3 | Dummy product 3 |  12.3 |
+----+-----------------+-------+
|    | Total           |  57.9 |
'----+-----------------+-------'

c:\cygwin64\home\ken\tmp\pm_11151991_io_select>perl no_woes.pl | perl no_woes.pl | perl no_woes.pl | perl no_woes.pl
[11812] STDIN:  TTY
[11812] STDOUT: PIPE
[12848] STDIN:  PIPE
[12848] STDOUT: PIPE
[11704] STDIN:  PIPE
[11704] STDOUT: PIPE
[2536] STDIN:  PIPE
[2536] STDOUT: TTY
.------------------------------.
|            Basket            |
+----+-----------------+-------+
| Id | Name            | Price |
+----+-----------------+-------+
|  1 | Dummy product 1 |  24.4 |
|  2 | Dummy product 2 |  21.2 |
|  3 | Dummy product 3 |  12.3 |
+----+-----------------+-------+
|    | Total           |  57.9 |
'----+-----------------+-------'