Archive | Linux RSS feed for this section

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 […]

Leave a comment Continue Reading →

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 […]

Leave a comment Continue Reading →

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

Leave a comment Continue Reading →

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.

Leave a comment Continue Reading →

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 […]

Leave a comment Continue Reading →

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 […]

1 Comment Continue Reading →