xref: /openbsd/gnu/usr.bin/perl/t/io/dup.t (revision 78b63d65)
1#!./perl
2
3# $RCSfile: dup.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:27 $
4
5print "1..6\n";
6
7print "ok 1\n";
8
9open(dupout,">&STDOUT");
10open(duperr,">&STDERR");
11
12open(STDOUT,">Io.dup") || die "Can't open stdout";
13open(STDERR,">&STDOUT") || die "Can't open stderr";
14
15select(STDERR); $| = 1;
16select(STDOUT); $| = 1;
17
18print STDOUT "ok 2\n";
19print STDERR "ok 3\n";
20if ($^O eq 'MSWin32') {
21    print `echo ok 4`;
22    print `echo ok 5 1>&2`; # does this work?
23}
24else {
25    system 'echo ok 4';
26    system 'echo ok 5 1>&2';
27}
28
29close(STDOUT);
30close(STDERR);
31
32open(STDOUT,">&dupout");
33open(STDERR,">&duperr");
34
35if ($^O eq 'MSWin32') { print `type Io.dup` }
36else                  { system 'cat Io.dup' }
37unlink 'Io.dup';
38
39print STDOUT "ok 6\n";
40
41