Learn free linux-unix tutorials

How to do remote ssh connection to openshift using putty?

February 18, 2023 ·  3 min read

Openshift is a platform as a server PAAS developed by Redhat company. 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 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....

Beginner Guide to sudo Command in Linux example

February 28, 2022 ·  2 min read

sudo command not found Debian sudo not found Find out sudo version Arch Linux sudo not found how to list current privileges for a given user invalidate sudo -kill the cache sudo -v option validation credentials sudo long listing of commands sudo is an abbreviation for superuser do. It is a Linux/Unix command used by system administrators to grant root privileges to a set of users for a specific command....

Best 10 find command examples in Unix and Linux

February 28, 2022 ·  4 min read

In this tutorial, Learned the frequently used top 10 find command examples in Unix/Linux OS. Show all files and nested directories in Linux Find a file by name in a directory structure in Unix How to run the last executed find command Find all files owned by a user Find file search using name ignore case sensitive Find files based on file type Find files in the level-down current directory Show folder and subfolders Find files that are modified in the last 10 mins Best Find command examples in Linux and Unix:- find command is one of the frequent commands used in Linux and Unix operating systems....

Best 10 Simple examples of Grep Command in Linux Unix

February 28, 2022 ·  2 min read

Multiple examples of Grep command in linux Grep command tutorials and syntax Search for a word in a file Case-insensitive search for a word in a file. Recursive search using the grep command What is a Grep Command in Linux? Grep is a popular and powerful command in Linux and Unix operating systems. Each developer and QA in software development need to know about grep command usage. Questions on Grep are asked by almost all interviews for the developer/QA role....

Best examples of zgrep and zcat commands in Unix/Linux

February 28, 2022 ·  3 min read

This post covers the following examples Find the given input string in tar.gzfiles Search string in a nested folder, that contains gzip files search tar files for a given string how to use grep command on gz files. find the string pattern gzipped files in a folder zgrep multiple gz files in a directory In Linux and Unix, a grep command used to search for a given string in log and text files....

Clear command in Unix|Linux|windows with examples

February 28, 2022 ·  1 min read

In Unix, Operation System, You will run multiple commands in the terminal, and you want to clear the previous run commands on the terminal. clear commands work in the following operating systems Linux flavors Unix Mac Ubuntu Bash shell Clear command clears the content on a terminal in Linux and Unix. This command does not accept any arguments. Here is a syntax clear It clears the current screen commands and output and shows a new prompt...

cURL command line tutorials with examples

February 28, 2022 ·  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 data between two machines. data can be transferred via HTTP or 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 in a console....

Learn tar command with examples in Linux or Unix

February 28, 2022 ·  2 min read

This tutorial shows you about tar command, extract, and compress with example commands. Tar command in UNIX:- Tar command is abbreviated as tape archive.tar is one of the most popular zipped/achieve commands in Unix like zipping in windows to compress the files and store all the files into a single file tar.gz. tar and gzip are more popular zipped archive commands in Linux or Unix like zipping, WinRAR, etc in windows....

Linux and Unix PS command Examples

February 28, 2022 ·  4 min read

PS command syntax and tutorial process status command examples ps -ef command in Unix ps -aef command in Linux How to Kill process by name Killall Kill Process Id How to Stop the process in Linux process status command Unix/Linux PS abbreviated as the 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....

Linux/Unix - Top 6 cat command examples with tutorial

February 28, 2022 ·  3 min read

This tutorial explains about cat command in linux with below examples Read files using the cat command Create files Using the cat command Copy file content using the cat command. Basic Cat command examples in Linux/Unix Cat command is a simple command used by every Unix/Linux user. It is one of the most frequently used commands in Linux/Unix Systems. Cat command works on bash, PowerShell, and shell options. Cat command behaves differently based on the different types of usage....

Top 10 gzip examples in Linux or unix

February 28, 2022 ·  3 min read

Multiple examples of gzip commands in Linux and Unix. gzip and zip command tutorial examples How to Compression the file by deleting the original file Compress the files with keeping the original file Uncompress/decompress the gz file multiple files and directories compress What is Gzip command in linux Gzip is abbreviated as GUN zip and it is one of the frequent commands used in Linux. The gzip command is used to compress a file for reducing the size of the file....

Top 10 ls command examples with tutorials in Linux/Unix

February 28, 2022 ·  3 min read

ls command syntax and tutorial ls command examples ls command in Linux 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 sorts the files alphabetically and outputs them to the standard console. when the ls command is executed, the Linux server does inode sorting and outputs the files alphabetically...

Top Yum command examples - Linux tutorials

February 28, 2022 ·  3 min read

This tutorials covers yum install package command yum remove package command list all packages and their versions using yum Update packages to the latest version of yum yum clean packages in Linux Yum abbreviated as Yellowdog Updater Modified is 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, and remove the packages or RPMs in red hat and Cent OS Unix....

Which command in Linux|Unix with examples

February 28, 2022 ·  3 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 log 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 the given input string string is an input filename which compared and checked against PATH folder paths Returns the list of the path of filenames...