I have two questions on Linux's free command. Below, I have provided output from my home laptop (fedora 26 ) which has 16GB Physical RAM and a production server (RHEL 7.4) which has 24GB RAM.
Question1. What exactly does the buffer/cache column say in free command's output ? buffer/cache is only 1GB in my home laptop but it is 18GB in production server below.
Question2. To know the free RAM available to the system, Can I trust the 'available' column rather than the 'free' column ?
In my home laptop, the 'free' column shows 13GB and available shows 14GB
But, in my production server, when the free command shows just 2GB , the available command shows 9 GB
My Home Laptop with 16 GB RAM (Fedora 26)
A production Server (VM) with 24GB RAM (RHEL 7.4)
I know that free command displays memory usages however I like to know how the option and the results when I use this command..
PLease respond ASAP
thanx... I am a newbie.. :D (1 Reply)
Hi there again,
Running Solaris 10 with built-in Java. Seems to compile and run fine.
Problem is: Say I want to see contents of current directory. In a shell, I'd just write "ls" and it outputs the content.
When I write a Java file, I have the following line:
System.out.println("ls");
... (1 Reply)
Hi All
I have something that from the outset seems really trivial but in practice is not quite working.
I have the following code sample in my shell script which illustrates the problem
echo "enter home directory"
read home
mkdir $home/newdir
The user then enters a logical $HOME... (3 Replies)
hi all,
when I run-
wcars1j5#netstat -an | grep 8090
127.0.0.1.8090 *.* 0 0 49152 0 LISTEN
wcars1j5#
1. does this mean that no one is connected to this port?
Regards,
akash (1 Reply)
I am having trouble figuring this one out.....Is this a 2CPU or a 4CPU v490 with 16GB? I think it is a 2CPU system, looking for confirmation.
$ prtdiag
System Configuration: Sun Microsystems sun4u Sun Fire V490
System clock frequency: 150 MHz
Memory size: 16384 Megabytes
... (1 Reply)
Hello, I need some help to interpret the below output...
What is -/+ buffers/cache?
My understanding is, total RAM is 3986152 Bytes, used RAM is 3950904 bytes.
What is buffers and cached?? Can any one please interpret this output? It would be great help if some one can help me on this?
... (2 Replies)
Hi Friends,
I am really confused with the output of "free" command on redhat linux.
I can see caching and buffer output on two different areas on the output.
Please let me know whats the difference of these two different outputs.
Here I am pasting the command output of my server.
# free... (3 Replies)
Hi. I wonder what the equal sign in front of the answer means.
I have read man pages and googled but found no answer.
xntpdc -p
=15.5.64.3 15.5.2.51 3 512 377 0.02060 0.057426 0.04965Thanks.
Jan (1 Reply)
Hi All,
I have a file with name
Is there a LINUX command that will help me to output the word after the 9th Underscore(_).
ie the output should be DLY in this case.
Can anybody pls help me.
Thanks much in advance,
Freddie (4 Replies)
I wanted to know the concept of free -m command as there are different rows of Mem, -/+ buffers/cache & Swap in the output. As an example, it is showing 195 as free Mem in my server but 13850 in the free section of the -/+ buffers/cache row. The output needs in depth knowledge of the different... (7 Replies)
Discussion started by: RHCE
7 Replies
LEARN ABOUT DEBIAN
linux::distribution::packages
Linux::Distribution::Packages(3pm) User Contributed Perl Documentation Linux::Distribution::Packages(3pm)NAME
Linux::Distribution::Packages - list all packages on various Linux distributions
SYNOPSIS
use Linux::Distribution::Packages qw(distribution_packages distribution_write);
$linux = new Linux::Distribution::Packages({'format' => 'csv', 'output_file' => 'packages.csv'});
$linux->distribution_write();
# Or you can (re)set the options when you write.
$linux->distribution_write({'format' => 'xml', 'output_file' => 'packages.xml'});
# If you want to reload the package data
$linux->distribution_packages();
DESCRIPTION
This is a simple module that uses Linux::Distribution to guess the linux distribution and then uses the correct commands to list all the
packages on the system and then output them in one of three formats: native, csv, and xml.
Distributions currently working: debian, ubuntu, fedora, redhat, suse, gentoo, slackware, redflag.
The module inherits from Linux::Distribution, so can also use its calls.
EXPORT
None by default.
TODO
* Add the capability to correctly get packages for all recognized distributions. * Seperate out parsing from writing. Parse data to hash
and give access to hash. Then write the formatted data from the hash.
AUTHORS
Judith Lebzelter, <judith@osdl.org> Alberto Re, <alberto@accidia.net>
COPYRIGHT AND LICENSE
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.5 or,
at your option, any later version of Perl 5 you may have available.
perl v5.10.1 2006-04-19 Linux::Distribution::Packages(3pm)