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Full Discussion: [Perl] Capture system call error message.
Top Forums Shell Programming and Scripting [Perl] Capture system call error message. Post 302345471 by ejdv on Wednesday 19th of August 2009 10:07:39 AM
Old 08-19-2009
Quote:
Originally Posted by jim mcnamara
Did you try to redirect stderr into stdout inside the system "script"?
Code:
$somevar = system( "[some command ] 2&>1");

The "2&>1" is a little typo.
It has to be "2>&1".
That explains why my hostname was changed to '2' on the other host.

This works (with backticks):

Code:
my $host = "nbsol152";
my $redirect = "2>&1";
my $return;
$return = `remsh $host hostname $redirect`;
printf "return : $return\n";

That will capture all output, including the error output.
 

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LEARN ABOUT DEBIAN

hostname

HOSTNAME(5)							   /etc/hostname						       HOSTNAME(5)

NAME

       hostname - Local host name configuration file

SYNOPSIS

       /etc/hostname

DESCRIPTION

       The /etc/hostname file configures the name of the local system that is set during boot, with the sethostname(2) system call. It should
       contain a single newline-terminated host name string. The host name may be a free-form string up to 64 characters in length, however it is
       recommended that it consists only of 7bit ASCII lower-case characters and no spaces or dots, and limits itself to the format allowed for
       DNS domain name labels, even though this is not a strict requirement.

       Depending on the operating system other configuration files might be checked for configuration of the host name as well, however only as
       fallback.

HISTORY

       The simple configuration file format of /etc/hostname originates from Debian GNU/Linux.

SEE ALSO

       systemd(1), sethostname(2), hostname(1), hostname(7), machine-id(5), machine-info(5)

AUTHOR

       Lennart Poettering <lennart@poettering.net>
	   Developer

systemd 							    10/07/2013							       HOSTNAME(5)
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