Learn free linux-unix tutorials


Top 10 gzip examples in linux or unix

June 21, 2021 ·  3 min read

Gzip abbreviated as GUN zip and it is is one of the frequent command used in Linux. gzip command is used to compression of a file for reducing the size of the file. This will saves the bandwidth, if the file is transferring between different systems. Moreover, the reduced size depends on the content of the file, if the content is text, it will reduce 60% and for the image, it should be 80%....


Linux and Unix PS commands Examples

June 17, 2021 ·  4 min read

process status command Unix/Linux PS abbreviated as process status command list information about the active process running in the Linux/Unix machine. This command list out all the active running process of a shell. We will see frequently used ps command examples in below sections. All these commands execute in the Linux/Unix command line ps command without arguments Ps command without arguments list out all the process of a current shell...


Clear command in Unix|Linux|windows with examples

May 24, 2021 ·  1 min read

In Unix, Operation System, You will run multiple commands in terminal, and you want to clear the previous run commands on the terminal. clear commands works in following operating systems Linux flavours Unix Mac Ubuntu Bash shell Clear command clear the content on terminal in Linux and Unix. This command not accepts any arguments Here is an syntax $ clear This clears the current screen commands and output and show a new prompt...


cURL command line tutorials with examples

May 23, 2021 ·  3 min read

This tutorial shows the basics of cURL command line tools, cURL Installation on Linux/Unix and windows. CURL is a command line tool used to send a data between two machines. data can be transferred via HTTP, FTP protocols of any URL/file. cURL command is used to test API during the development phase. This tool is available in Windows, Linux, Unix and Mac operating systems. Understanding cURL command Usage Retrieving Content from URL Testing REST API Upload/download files get Response and Location headers of any remote URL or websites cURL command install and configure on windows For developers, This is the basic and important command to test REST API’s in a console...


Which command in Linux|Unix with examples

May 3, 2021 ·  2 min read

Which command is a frequently used command to find the location of executable files in linux/unix During application development, I can use this command to locate the tomcat location for logs finding. In this tutorial, We are going to learn about which command and syntax and usage examples Syntax which options [string array] This command accepts, options -a displays all pathnames of given input string string is an input filename which compared and checked against PATH folder paths Returns the list of path of filenames...


Best examples of zgrep and zcat commands in Unix/Linux

May 2, 2021 ·  2 min read

In Linux and Unix, we have grep command used to search for a given string in log and text files. Suppose you have uncompressed files like gzip, tar gz files, How do you search for a given word in those search files. Tomcat server store the daily log files in tar.gz format. If you want to search for errors or strings in those files, We can use zgrep for search and zcat for view the files....


Beginner Guide to sudo Command in Linux example

December 27, 2020 ·  2 min read

sudo is abbreviated as superuser do. It is an linux/unix command which is used by system administrator to give privileges to set of users as root for a given commands. This could be applied to a commond level only. In this blog we are going to cover the sudo usage examples and usecases. sudo command not found Sometimes, sudo command will not work and it gives sudo command not found error in the console....


Top Yum command examples - linux tutorials

July 13, 2016 ·  2 min read

Yum abbreviates as Yellowdog Updater Modified a free tool for managing packages in RedHat Unix as well as CentOS. yum is a popular packaging tool to manage the different packages in Linux. Yum, do install, update, remove the packages or rpm’s in red hat and Cent OS Unix yum is a similar apt-get tool in ubuntu operating system. yum install the dependencies automatically yum download the temporary files and store under /var/cache/yum folder, Once the yum operation is finished, the data will be deleted....


how to do remote ssh connection to openshift using putty?

July 10, 2016 ·  3 min read

Openshift is a platform as a server PAAS developed by Redhat company. Basically, openshift is a cloud computing platform provider for managing application development using several languages like PHP and nodejs framework. In the current market, the cloud is a famous buzzword with similar to amazon web services.OpenShift has different plans. You can choose a plan based on your requirement. Openshift provides a free plan which gives access to 3 small gears without a credit card....


Linux/Unix - Top 6 cat command examples with tutoral

May 25, 2013 ·  3 min read

Basic Cat command examples in Linux/Unix Cat command is a simple command used by every Unix/Linux user. It is one of frequently used command in Linux/Unix Systems. Cat command works on bash, and PowerShell and shell options. Cat command behaves differently based on the different types of usage. By using cat command, we can do the following functionalities 1. Read files using the cat command 2. Create files Using cat command 3....


Top 10 ls command examples with tutorials in Linux/Unix

May 21, 2013 ·  3 min read

Ls is one of the frequently used commands in Linux as well as UNIX and it is important to know about this command Ls command list the names of files or directories in a directory. ls command sort the files alphabetically and output to the standard console. when ls command is executed, Linux server does inode sorting and outputs the files on alphabetically in Linux files metadata are stored in a data structure which includes file owner, file access rights and file type....


Best 10 Simple examples of Grep Command in linux Unix

May 20, 2013 ·  2 min read

Top 10 Simple examples of Grep Command with an explanation in linux Grep is a popular and powerful command in Linux and Unix operating system. Each developer and QA in software development need to know about grep command usage. Questions on Grep is asked by almost all interviews for developer/QA role. Every one in Software field must know the Grep Usage and commands Grep is used to search in a file or multiple files for matching keyword or lines....


Top 10 examples of find command in unix and linux

February 6, 2012 ·  4 min read

Best Find command examples in linux and unix:- find command is one of frequent command used in linux and unix operating systems. find command is used by unix/linux users to search the specific files in directory as well as sub directories. I use this command as part of my programming development with java for searching logs as well as java files in linux operating system. In windows environment, users have the ability to search the any files directly using windows explore....


Learn tar command with examples in linux or unix

January 22, 2012 ·  2 min read

Tar command in unix:- Tar command is abbreviated as tape archive.tar is one of the most popular zipped/achieve command in Unix like zipping in windows to compress the files and store all the files into single file tar.gz. tar and gzip are more popular zipped archive commands in Linux or Unix like zipping, WinRAR etc in windows. I have also blogged about Top 10 gzip examples in linux,unix for gzip usage....


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