Linux, Ubuntu, Debian, Mint, CentOS Tutorials
The wget command or tool is used to download and retrieve data from websites, FTP servers, etc. The wget is very popular in the open-source community as a download manager. The wget command can use different protocols to downloads files and data like HTTP, HTTPS, FTP, etc. The wget tool provides robustness, recursive download, non-interactiveness … Read more
The *.tar.gz is a very old and popular compression and file format used to store multiple files and directories in a single compressed file. The tar.gz file consists of two types of files where the first format is the tar format. The tar format is used to put multiple files and folders into a single … Read more
Zip is a compression algorithm and format used to package given files and folders to use less disk space. The zip files have generally the *.zip extension and different tools that can be used to create, add, remove or extract zip files. But the most prolific tool and command is the zip command in Linux … Read more
Linux provides the ip route command in order to manage the routing table. The routing table is used to set routes for different destination IP addresses. Even there is a default route in most of the cases which are used to sent IP packets to the other networks we may need to add new routes … Read more
The disk is an important resource for Ubuntu distributions and servers. Especially SSD disks are more expensive than other mechanical disks. So it is important to check free and used disk space regularly and take required actions to empty unnecessary data. Ubuntu provides different ways, commands to check free and used disk space. In this … Read more
Adding and removing user accounts is a daily task for a Linux system administrator. Ubuntu is one of the most popular distributions used in the Enterprise environment where the delete or removing a user account is a daily task too. Removing or deleting a user account in Ubuntu requires administrative privileges which are generally provided … Read more
Gzip is a popular compression algorithm and tool used to compress files to reduce file sizes? The gzip compression is very popular in Linux and Unix-based operating systems and distributions. The gzip files generally have the *.gz or *.z extension. In this tutorial, we explain how to extract or unzip the gzip files by using … Read more
Dockerfile is used to configure docker images and specify commands to be executed before the image creation. Dockerfile contains instructions to read by the docker engine and executed properly. Even the Dockerfile may contain a lot of commands, configuration, etc. which should be explained and described for later use. Comments can be added into a … Read more
Linux Bash Shell Script Comments can be used to add some information about the script of specific command or line in a script file. Comments are not interpreted as a shell script command. Single line or multiline comments can be created in a shell script. Bash Shell Script Singleline Comment The hash mark (#) is … Read more
Bash comments are used to provide descriptions and explanations for the bash script. Bash comments can be used to add description and explanation for a variable, function, code block, or for the complete script. Comments can be used later used to understand the bash script and related code blocks easily and make changes or updates … Read more