Re^2: best practices for checking system return values for piped commands?

[eXile]

I second the use of bash-es PIPESTATUS, I've used it in code like this:

my %cmds = ( 'bash' => '/usr/local/bin/bash',
             'gzip' => '/usr/bin/gzip',
             'lzop' => '/usr/bin/lzop',
             'wc'   => '/usr/bin/wc' );


my @zip_results = `$cmds{'bash'} -c '$cmds{$compress} -dc $file | $cmds{'wc'} -c ; echo \${PIPESTATUS\@}'`;

The last line of @zip_results has the status of both the 'compress' command and the 'wc' command.