Linux Commands

How to Use Linux Dig Command to Query DNS

Bulk query using text file

As the Internet grows, people are getting hard to remember IP Addresses as a unique identity for computers. Then the Domain Name System (DNS) concept came. DNS will map an IP Addresses into names. Names are easier to remember. The implementation of [...]

Pungki Arianto 3:00 am

8 Linux host Commands - Options for DNS Lookup

Display detail information

TCP/IP put the computer address in a set of numbers such as '74.125.135.99' called IP Address. This number must be unique for every computer in the world. When the TCP/IP grows, its hard to remember every address which formats like that. [...]

Pungki Arianto 3:00 am

6 Linux more Commands - Display Long Text File Per Page

Scroll up using more

If you are used to working with Linux, you will find a lot of file text in Linux world. Configuration files and log files are usually kept in text format. But those files usually has long content. You can not [...]

Pungki Arianto 3:00 am

10 Practical Linux mv Commands - Moving or Rename File/Directory

Backup option

After knowing about 15 copy commands, the next command which is related is mv command. When you want to move files from one place to another and you don’t want to duplicate it, then mv command is absolutely right for [...]

Pungki Arianto 3:00 am

How to Use Linux rm Command with Examples

Force remove

When a file no longer needed, we may delete it to save storage space. On the Linux system, we can use rm command to do it. Linux rm is a command to delete a file/directory without confirmation by default. Because [...]

Pungki Arianto 3:00 am

Linux pwd command - Know Your Current Working Directory

pwd version

Where you are inside a deep directory, sometimes you may want to know where exactly you are. With this pwd command, you can do it. Linux pwd is a command to print the name of current/working directory. When we are [...]

Pungki Arianto 8:00 pm

Guide on the Usage of Linux CD Command with 10 Examples

cd command linux

cd command is one of the most basic and common commands used among Linux users, but this is not limited only to Linux systems and this is also available in operating systems such as Unix, DOS, OS/2, AmigaOS, Windows, ReactOS. [...]

Raghu 11:09 am

Linux mpstat Command - Reports Processors Related Statistics

linux mpstat command

You may find a situation when your cpu utilization is high but you feel that you don't run anything. On Linux system, you can monitor this activity using mpstat. Mpstat is used to monitor cpu utilization on your system. It [...]

Bobbin Zachariah 11:41 pm

Linux w Command to See Who is Logged In And What Doing

w version

As system Administrator, you must manage the users who logged in into your Linux system. I am not sure why this command called “w”. Just a simple letter. But behind the simplicity of its name, w give us a valuable information. [...]

Pungki Arianto 3:00 am

How to Display and Set Hostname in Linux

hostname command linux

With more and more computer connected to the network, the computer needs to have an attribute to make it different from each other. Same as a human in the real world, the computer also has an attribute which named hostname. [...]

Pungki Arianto 9:49 am

20 Linux Cat Command Examples for File Management

linux cat command

In Linux operating system most of configuration files, logs even shell scripts are in text file format. There is why we have numbers of text editors in Linux. When you just need to see the content of those files, you [...]

Pungki Arianto 10:44 am

How to RPM Query for Packages on Linux

We will explain the options that can be added to the rpm command (Redhat Package Manager) in order to query packages in Linux. The following elements of the article will be explained: How to query the whole RPM database? How [...]

Deep 4:08 am

Linux Pmap Command - Find How Much Memory Process Use

The Linux pmap command display the memory usage map of a process or multiple processes. Pmap reports information about the address space or memory usage map of a process. Pmap is actually a Sun OS command and Linux supports only very [...]

Bobbin Zachariah 9:29 am

How Chown Recursively Change File/Directory Ownership in Linux

The chown command in Linux is used to change the ownership and group ownership of a files/directories. In Linux, all files, directories and processes (which are again files) are owned by users. The group is a set of users that share [...]

Raghu 9:16 am