10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Friends have the following problem
a search may not find anything which would correct example:
ls -ltr *prueba.txt | nawk '{ print $9 }' > Procesar.dat 2>/dev/null
When he finds nothing gives me the following error
ls: prueba.txt: No such file or directory
because 2> / dev / null... (4 Replies)
Discussion started by: tricampeon81
4 Replies
2. Shell Programming and Scripting
Hello All and a Happy New year to yous guys.
I'm running the below command on my AIX box and it keeps giving me the message that the file doesn't exist. I know the file don't exist, but I don't want to see the error. 2>/dev/null doesn't work.
bash-3.00$ ls -l C* | wc -l 2>/dev/null
ls:... (2 Replies)
Discussion started by: bbbngowc
2 Replies
3. Shell Programming and Scripting
I apologize if this question has been answered else where or is too elementary.
I ran across a KSH script (long unimportant story) that does this:
if ; then
CAS_SRC_LOG="/var/log/cas_src.log 2>&1"
else
CAS_SRC_LOG="/dev/null 2>&1"
fithen does this:
/usr/bin/echo "heartbeat:... (5 Replies)
Discussion started by: jbmorrisonjr
5 Replies
4. UNIX for Dummies Questions & Answers
How are these two different? They both prevent output and error from being displayed. I don't see the use of the "&"
echo "hello" > /dev/null 2>&1
echo "hello" > /dev/null 2>1 (3 Replies)
Discussion started by: glev2005
3 Replies
5. Shell Programming and Scripting
when do you use the path /dev/null (3 Replies)
Discussion started by: webmunkey23
3 Replies
6. Solaris
Hi, Anyone can help
My solaris 8 system has the following
/dev/null , /dev/tty and /dev/console
All permission are lrwxrwxrwx
Can this be change to a non-world write ??
any impact ?? (12 Replies)
Discussion started by: civic2005
12 Replies
7. Shell Programming and Scripting
hello all,
In many shell scripts i found '> /dev/null' , i am not able to get this,
will any one please explain why we are using this.
thanks
sudha (2 Replies)
Discussion started by: rrs
2 Replies
8. UNIX for Advanced & Expert Users
Hi,
Q1-What does
nroff -ms > /dev/null
Q2- What does mean -A under STAT column :
ps aux |head -20
UTIL PID %CPU %MEM SZ RSS TTY STAT STIME TIME COMMAND
root 516 93,0 0,0 12 12 - A 04 nov 3906:51 wait
Thank you. (4 Replies)
Discussion started by: big123456
4 Replies
9. UNIX for Dummies Questions & Answers
Hi ,
I am importing some table from /dev/null i dont understand what is /dev/null
Sorry i am new to UNIX
sam71 (3 Replies)
Discussion started by: sam71
3 Replies
10. UNIX for Dummies Questions & Answers
Maybe it's an stupid question but remeber... I'm Junior..
I use command line to run programs, and some of them gives a lot of information when, for example, you open a window or other actions. That's really bad because my terminal gets full of unwanted messages, so I use "bin file & >/dev/null"... (1 Reply)
Discussion started by: piltrafa
1 Replies
Appender::Screen(3) User Contributed Perl Documentation Appender::Screen(3)
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 v5.12.1 2010-02-07 Appender::Screen(3)