Sys::VirtV2V::ExecHelper.3pm

Langue: en

Version: 2010-07-01 (fedora - 01/12/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

Sys::VirtV2V::ExecHelper - Execute a command with output suppression

SYNOPSIS

  use Sys::VirtV2V::ExecHelper;
 
  $eh = Sys::VirtV2V::ExecHelper->run('rpm', '-V', 'bash');
 
  if($eh->status() != 0) {
      print STDERR $eh->output();
  }

DESCRIPTION

Sys::VirtV2V::ExecHelper is a substitute for system() when you don't want any command output. Sys::VirtV2V::ExecHelper does, however, make STDOUT and STDERR available in a combined stream if it is required, for example because the executed command failed.

METHODS

run(@command)
Run @command, which is an array containing the command and its arguments.

The command will be executed immediately. ExecHelper will block until the command exits.

status
Return the exit status of the executed command.
output
Return the combined stdout and stderr of the command.

WARNING: This command puts the output in a string in memory. Don't use this if the output could be large.

Copyright (C) 2009 Red Hat Inc.

LICENSE

Please see the file COPYING.LIB for the full license.

SEE ALSO

virt-v2v(1), <http://libguestfs.org/>.