Articles tagged "linux"

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3 min readBeginner

Learn how To Use grep Command.

Improve as a system administrator or as a software developer and learn how to use the very useful command grep. We cover some basic usage and some advance usage. Learn here how to use regular expression with grep and how to search recursively with grep.

4 min readBeginner

C Programming: If-Else Statement Guide

Knowning how to program in C is a good desicion. Learn here how the if else statement works. See some examples to learn with more details how C code works.

1 min readBeginner

How to search for a package in Arch Linux

In this tutorial we are going to explain how to use pacman and pkgfile to search for packages in Arch Linux. With pacman use "pacman -Ss packageName" and with pkgfile use: "sudo pacman -S pkgfile". Check here for more details on how to use and install the tools.

1 min readBeginner

Ubuntu: Recursive chmod for Directories

You can use the parameter -R to apply permission recursively on all directories using chmod. If you only want to apply the execution permission to subdirectories use the option a+rX, check here for more details.

2 min readIntermediate

Linux: How to use ufw to block visitors by country?

Learn hot to block users by country or region on Linux using a list of IPs.

2 min readBeginner

Ping localhost error in Linux

Learn different solutions to the error "ping: unknown host localhost". Usually some networking configuration was changed by mistake like in /etc/hosts.

1 min read

Nessus localhost port

Nessus default port is 8834. https://localhost:8834

1 min read

SOLVED: configure-error-cannot-find-lzma-header

./configure return the error configure: error: lzma header files not found. Also checking for lzma.h... no. To fix this issue install with apt the following package...

2 min readBeginner

Linux: Search Text in Files with grep/ack/ag

Have you ever struggle to use the command *find* in linux and it doesn't work as expected? Here we explain the proper way of finding text in multiple files. We also show you the fastest tool to search in git repositories.

5 min readBeginner

How to Blacklist Nouveau Driver in Linux [Ubuntu/Debian/Fedora]

Learn how to blacklist the Nouveau driver in Linux for Nvidia installation. Step-by-step guide for Ubuntu, Debian, Fedora, and Arch Linux systems.