NAME¶

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

SYNOPSIS¶

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

DESCRIPTION¶

Sys::VirtConvert::ExecHelper is a substitute for system() when you don't want any command output. Sys::VirtConvert::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¶

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/>.