Re^3: Using IPC::Open3 instead of backtick operator

Depending on configuration, IPC::Cmd will use either IPC::Run or IPC:Open3, so will capture STDERR as well as STDOUT.

Called with 1 buffer, IPC::Cmd will put both STDOUT and STDERR in that buffer. Called in list context, it will return seperate buffers for STDOUT and STDERR.

Comment on Re^3: Using IPC::Open3 instead of backtick operator

Replies are listed 'Best First'.
Re^4: Using IPC::Open3 instead of backtick operator by ikegami (Patriarch) on Jun 10, 2016 at 18:18 UTC
`use strict; use warnings; use IPC::Cmd qw( run ); my $tool = 'tar'; my $cmd = [ 'perl', '-e', 'warn "TEST FAILED IF YOU SEE THIS\n"' ]; my $buffer = ''; my @out = run( command => $cmd, buffer => \$buffer, verbose => 1 );` [download] `$ perl z.pl Running [perl -e warn "TEST FAILED IF YOU SEE THIS\n"]... TEST FAILED IF YOU SEE THIS` [download] However, one simply has to remove `verbose => 1` to make this a solution.	[reply] [d/l] [select]

Replies are listed 'Best First'.

Re^4: Using IPC::Open3 instead of backtick operator
by ikegami (Patriarch) on Jun 10, 2016 at 18:18 UTC

use strict;
use warnings;
use IPC::Cmd qw( run );

my $tool = 'tar';
my $cmd = [ 'perl', '-e', 'warn "TEST FAILED IF YOU SEE THIS\n"' ];
my $buffer = '';
my @out = run( command => $cmd,
          buffer => \$buffer,
          verbose => 1 );
[download]

$ perl z.pl
Running [perl -e warn "TEST FAILED IF YOU SEE THIS\n"]...
TEST FAILED IF YOU SEE THIS
[download]

However, one simply has to remove verbose => 1 to make this a solution.

[reply]
[d/l]
[select]