ubuntu – Page 2 – POFTUT

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How To List and Mount ISO Files In Linux

ISO image is an archive file generally used for optical disks. ISO image uses file system ISO 9660 and have extension .iso or .image . ISO images can be written into CD, DVD, Blu-ray . ISO file are very popular way to distribute files, Linux distributions, media files etc. List ISO Image Content We may want to list content of ISO image and check if the content we are looking...


Linux Diff Command Tutorial with Examples To Compare Two Text File

Comparing files line by line can be done with tool named diff. There are a lot of different options provided by diff. We will look most popular and useful features in this tutorial. Syntax diff have simple syntax. There are options which we will look later and files to be compared.

Compare Two Files In this example we will compare two files line by line

If there is...


Python For Loop Tutorial with Examples

Python programming language provides loops with for statement. It is similar to the most of the main stream programming languages like C, C++, Java or C# . We will look to the for loop Python examples. for loop mainly used to iterate over specified list or array. For Loop Python Syntax Syntax for python for loop is like below.

Simple and Basic For Loop Here is a simple for loop...


Linux Xargs Command Tutorial With Examples

xargs is a command which can be found in most of the Linux and BSD operating systems and gives scale-ability to execute command from standard input. Grep and awk accept parameters from standard input but cp or echo do not accept parameters from standard input. They only accept parameters from command line. Xargs gives ability to provide parameters from command line. Provide Parameters To Xargs We will provide some command...


What Is My DNS Server and Hot To Change DNS Server For Windows, Linux?

Dns Servers are very important part of the internet and computer networks. When DNS servers are down we can not use internet in a easy manner. DNS servers provides domain name to IP or vice versa resolution. Windows Windows operating system family provides ipconfig command for general information gathering tool. ipconfig command without any parameter will show base configuration about the network of the operating system. Just issue following command...


Bash For and While Loop Examples

Bash can provides different programming language structures like variable, array, loop, decision making etc. Loop is one of the most useful feature of bash scripting. Loops will give the ability to iterate over given sequential structures like array, file list, numbers, inputs etc. Loop Syntax Bash provides alternative syntax for loop. Below are some examples of for loop syntax.



For line provides the loop logic...


How To Manage Firewall Rules With Iptables In Linux

Firewall is main component for network security. Enterprise firewalls are located between internet and enterprise networks to manage access and other stuff. There are also host firewalls those are very similar with network firewalls but more simple. Iptables is de facto standard firewall for both Linux systems and networks. We will look how to manage iptables in a Linux system. Get Status of Iptables Service Ubuntu use iptables as ufw...


Linux KVM Libvirt Tutorial

Hi today we are gonna look for managing vms especially in Linux with libvirt. Libvirt is a library and tools to manage vms. Lbivirt development is supported by Red hat and defacto tool in Linux world. In Linux Kvm/qemu is generally used for virtuulization but libvirt supports Xen, Virtualbox, Vmware, Hyperv too. To install and see info about the libvirt packet. As you see it is very little tiny packet...


RabbitMQ Tutorial

RABBITMQ is a message broker which works as a common channel for different entities. The main purpose of RABBITMQ is clustering and high availability. Message producer entities put message to the RABBITMQ and then the consumers get it according to work plan. If some of the producers or consumers fail the remainings still works. Advenced Messaging Queuing Protocol (AMQP) is the main standart that is implemented  by RABBITMQ. RABBITMQ gives reliability to the application...


How To Get Ram Size In Linux?

What are the ways to get ram size in Linux operating system? Here is some methods to find ram size in Linux operating systems like Ubuntu, Debian, Fedora, CentOS, Red Hat. Getting Ram Size With meminfo Proc file system provides coonfiguration information about the current opoerating system. We can get information from direcly kernel provided /proc/meminfo . We can see a lot of information parameter with meminfo

As we see there...

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