The printenv command is an alternative to the env command used to fetch the value of a specified variable name (key) used as an argument.

Linux administrators are allowed to create "normal user accounts" with a range from 1000 to 60000 uids, where uid 0 is reserved for "root users" and "system users" are allowed uids from 1 to 999.

The gpasswd command is used to administer “/etc/group” and “/etc/gshadow” file by allowing you to manage group members in your Linux system.

In this article, you will learn the difference between the logname and whoami commands, the usage of the logname command, and how to use it in shell scripts.

In this article, you will learn how to follow the deeply nested soft link (or symbolic link) inside the tree using the readlink command.

In this article, you will learn how to change referenced file or directory permissions using the chmod command in Linux (with practical examples).

The compgen command is a very handy tool available in major Linux distributions that can help you find your system aliases, commands, directories, groups, jobs, users, etc.

The chage command is identical to the passwd command used to change user account and password expiration information.

In this article, you learn how to use the stat command to check the properties of a referenced file, including file system related information.

AWK is a domain-specific programming language that can be used as a Linux command-line tool or within a shell script.

The chroot jail is a process of creating a sandbox environment for a user or script with restricted permissions assigned by the jail creator that can come into use for various reasons, followed by

In this article, you will learn how to rename single or multiple files using the mv and rename command line tools.

The whatis command is used to fetch a one-line description of the specified command or tool from the manual pages in your Linux system.

The restricted bash shell (or rbash) is a Linux shell that blocks certain features of the bash shell for both commands and shell scripts executed inside the restricted shell.

The env command is an advanced version of printenv with a few more features to tweak your environment variables, like setting new environment variables, printing all environment variables, or executing a command in a modified environment.

The su command is the most powerful command on Linux, giving anyone with access to another user’s account by knowing their current password if they have sudo privileges.

The chvt command is an essential Linux built-in utility to help you switch between different TTY screens (or virtual consoles) from the command line interface.

In this article, you will learn what an inode is, how to check an inode and its size on Linux, and their roles in soft/hard links and system updates.

The vdir command is an equivalent to the “ls -l -b” command, printing the content in long list format and showing escape characters on the file or directory name, just like the dir command is equivalent to the “ls -C -b” command.

On Linux, you have multiple tools like which, whereis, locate, and find that can help you find the absolute path for files and directories in your system.

In this article, I will guide you on how to install MySQL on your preferred Linux system and how to configure and manage it.