I've been looking around for this for a while and can't seem to find a satifactory way to do what I want:
I would like to assign the output of stdout to a variable and that of stderr to another one, and this without using temporary files/named pipes. In other words be able to assign several variable at a time.
For instance:
Is it even possible? problems with backticks (``) or $(...) is that it only assigns 1 variable at a time I believe. Anyone's got any idea?
I could do:
and parse the output but is the order even guaranteed? even if it is, distinguishing the stderr part from the stdout one would be difficult...
Thanks!
Anthony
Last edited by anthalamus; 08-24-2010 at 05:53 PM..
How can I redirect and append stdout and stderr to a file when using cron? Here is my crontab file:
*/5 * * * * /dir/php /dir/process_fns.php >>& /dir/dump.txt
Cron gives me an 'unexpected character found in line' when trying to add my crontab file.
Regards,
Zach Curtis
POPULUS (8 Replies)
#!/usr/bin/perl
open(STDOUT, ">>$Textfile")
open(STDERR, ">>$Textfile")
print "program running\n";
$final = join("+", $initial,$final) #5
close (STDOUT);
close (STDERR);Hi all, above is my perl code. Notice i have captured the stdout and stderr to the same textfile. my code is expected to... (1 Reply)
Hi friends
I am facing one problem while redirecting the out of the stderr and stdout to a file
let example my problem with a simple example
I have a file (say test.sh)in which i run 2 command in the background
ps -ef &
ls &
and now i am run this file and redirect the output to a file... (8 Replies)
I have been doing this:
make xyz &> xyz.log &; tail -f xyz.log
The problem with this is that you never can ge sure when "make xyz" is done.
How can I pipe both stderr and stdout into tee so both stderr and stdout are copied both to the display and to the log file?
Thanks,
Siegfried (3 Replies)
working on a c sell script
I think I understand the concept of it, which is:
filename >> file.txt (to appaend)
or filename | tee -a file.txt (to append)
The problem is that my shell script is used with several parameters, and these commands don't seem to work with just filename. They... (2 Replies)
I have an executable that, depending on its input, outputs to either one file or several. It usually prints nothing on screen. The usual way to call this program is to specify an input and output filenames, like this:
./executable.exe -i inputfile -o outputfileIt will then try to use the output... (1 Reply)
Hi all. I am trying to use backticks in Perl to put STDERR into a string. The code is...
$readkey_test = `perl -MTerm::ReadKey -e 1`;
print $readkey_test;
if ($readkey_test =~ m/]/)
{
print "ReadKey not installed...\n";
}
else
{
print "ReadKey installed...\n";
}
If it comes up... (3 Replies)
Can somebody explain to me why the diff output is not going to stderr?
Yet when I issue a diff from the command line the return code is -ne 1.
I am guessing diff always writes to stdout???
Is there away I can force the difff to write to stderr USING THE CURRENT
template. If possible, I... (5 Replies)
Hi all,
can someone help me with the next redirection?
i want to redirect the stdout+stderr of a command to the same file (this i can do by prog &> file)
but in addition i want to redirect only the stderr to a different file.
how can i do this please? (in BASH)
thanks. (4 Replies)
Well.. let's say i need to write a pretty simple script.
In my script i have 2 variables which can have value of 0 or 1.
$VERBOSE
$LOG
I need to implement these cases:
($VERBOSE = 0 && $LOG = 0) => ONLY ERROR output (STDERR to console && STDOUT to /dev/null)
($VERBOSE = 1... (5 Replies)
Discussion started by: Marmz
5 Replies
LEARN ABOUT DEBIAN
log::log4perl::appender::screen
Appender::Screen(3pm) User Contributed Perl Documentation Appender::Screen(3pm)NAME
Log::Log4perl::Appender::Screen - Log to STDOUT/STDERR
SYNOPSIS
use Log::Log4perl::Appender::Screen;
my $app = Log::Log4perl::Appender::Screen->new(
stderr => 0,
utf8 => 1,
);
$file->log(message => "Log me
");
DESCRIPTION
This is a simple appender for writing to STDOUT or STDERR.
The constructor "new()" take an optional parameter "stderr", if set to a true value, the appender will log to STDERR. The default setting
for "stderr" is 1, so messages will be logged to STDERR by default.
If "stderr" is set to a false value, it will log to STDOUT (or, more accurately, whichever file handle is selected via "select()", STDOUT
by default).
Design and implementation of this module has been greatly inspired by Dave Rolsky's "Log::Dispatch" appender framework.
To enable printing wide utf8 characters, set the utf8 option to a true value:
my $app = Log::Log4perl::Appender::Screen->new(
stderr => 1,
utf8 => 1,
);
This will issue the necessary binmode command to the selected output channel (stderr/stdout).
COPYRIGHT AND LICENSE
Copyright 2002-2009 by Mike Schilli <m@perlmeister.com> and Kevin Goess <cpan@goess.org>.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.10.1 2010-07-21 Appender::Screen(3pm)