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How to Enable/Disable Password Login in Unix (Ubuntu) via Command Line

Edit the ssh config file using your preferred editor I am going to install vim. You will need root access to do this operation. vim /etc/ssh/sshd_config Then find the line with PasswordAuthentication and change the line as below PasswordAuthentication yes If you want to turn off the password authentication then you can just commented out […]

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How to Run Node.Js Application as Different User?

In your .env file add USER=www-data Note: I have choose to run node as the user www-data you can choose any other appropriate one. Now Run $ npm i userid –save At the top of your app.js or index.js file add const userid = require(‘userid’);const user = process.env.USER;const uid = parseInt(user), 10);// Set server’s uid […]

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How to List Files & Directories With Size in Linux Command Line

The command du stands for Disk Uses. You can use this command to see how much disk space a file or directory is taking. In order to list size of all files and directory of the current directory. You can run: du -sh * Explanation: du: Disk Usage -s: Display a summary for each specified […]

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Ubuntu How to List All PHP Packages?

grep is a very useful command to learn no matter which linux distribution you are using. For example I wanted to list all php 7.1 available packages. I can use grep command to filter out the output and show only relevant package names. apt-cache pkgnames | grep php7.1

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How to Create Symlink via CLI in Unix – CentOS – Ubuntu – Linux

Symbolic link or symlink ( or sometime called soft link ) is a file that only exists as a reference for another file or directory. In order to create symlink via command link interface (CLI) in an Unix based system you will need to use ln command. ln -s /path/to/file /path/to/symlink ln stands for Link.

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How to Extract tar.gz file in Unix/Linux

When you are in a unix based system like Ubuntu, CentOS etc. You will need to know how you can extract a tar.gz file using command line interface (CLI) Take an example, we have a file myFile.tar.gz cd into the same directory as the file. Now run the command tar -xzf myFile.tar.gz This will create […]

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How to Fetch Latest Update Form Bitbucket Private Repo to Local

If you are collaborating with a team and working on a fork of a repo. Merge conflicts are common on git but you always need to be upto date to avoid nasty merge conflicts, which may very well kill your production time if you get too far behind. This is how you can download the […]

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How to Exit from Linux CLI Editor / VIM

Often for newbies how to exit form VIM or CLI (command line interface) editor is confusing. I’ve seen people just close the CLI in out of frustration. Follow the instruction below if you finding it hard to exit from VIM   Press Esc key couple of time. This will ensure that you are back in […]

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How to Change PHP Version for Current Directory – Godaddy – Linux Hosting

So, I recently had a special case where my client was using older version of php in his godaddy hosting and didn’t want to upgrade. But for the current project I needed to enable php 5.4. I couldn’t use godaddy control panel to change/upgrade php version because that would change the php version for whole […]

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How to Disable Password Requirement on Windows 8 Logon?

While setting up Windows 8 you will need to setup a password for your user account. On previous windows version it was optional. Its a awesome security feature but if you are using your PC in home you might not require that. So, Here is how you disable it. Logon to your user account. Press […]

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