Login to your server as root. As the root user, edit the sshd_config file found in /etc/ssh/sshd_config: vi /etc/ssh/sshd_config Add the following line to the file, you can add it anywhere but it’s good practice to find the block about authentication and add it there. PermitRootLogin yes Save and exit the file. Restart the SSH server: systemctl restart sshd or service sshd restart ...
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What is a LAMP Stack? A LAMP (Linux, Apache, MySQL, PHP) stack is a common, free, and open-source web stack used for hosting web content in a Linux environment. Many consider it the platform of choice on which to develop and deploy high-performance web apps. Before You Begin Update your system: sudo apt update && sudo apt upgrade Install Using Tasksel Instead of installing Apache, MySQL, and PHP separately, Tasksel...
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Let’s take an plain text file, input.txt, that looks like this PATTERN-1 First line of unimportant text Second line of unimportant text PATTERN-2 Some more texts (may/ mayn't be important!) We want to delete some of the lines from the file using the command line stream editor, sed. 1. Use the following command to delete the lines lying between PATTERN-1 and PATTERN-2 , excluding the lines containing these patterns: sed '/PATTERN-1/,/PATTERN-2/{//!d}' input.txt If you...
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Here are two ways to delete the blank lines in a text file opened with vim: 1. Delete all the blank lines with NO white spaces other than new lines: :g/^$/d 2. Delete the blank lines containing any type of white spaces: :g/^\s*$/d BONUS: Remove only multi blank lines (reduce them to a single blank line) and leaving single blank lines intact: :g/^\_$\n\_^$/d Reference: Stack Overflow....
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