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  1. or download this
    CMD        : >>echddo 'arghh'<<
RETURN_CODE: >>32512<<
CMD_RESULT : >>sh: echddo: command not found
<<
  2. or download this
    CMD        : >>hostnam<<
RETURN_CODE: >>-1<<
CMD_RESULT : >><<
  3. or download this
    `$cmd 1>./tmp 2>&1`;
my $cmd_rc = $?;
my $cmd_result = `cat ./t`;
  4. or download this
    CMD        : >>hostnam<<
RETURN_CODE: >>32512<<
CMD_RESULT : >>sh: hostnam: command not found
<<