The whoami (concatenated of the strings “who,” “am,”, “i” as whoami) is a Linux command line utility that prints the username associated with the current effective user ID. It comes in handy, especially while writing the shell script, like fetching the username within the script
Symbolic links (also referred to as “soft links” or “symlinks”) are a kind of shortcut to another file used in the Linux operating system mostly for shared libraries. If you’ve been using Linux as a regular desktop, you might already have encountered one or will
We recently published a detailed article on the use of the readlink command in Linux; if you read that article, you will understand this better. In short, both are identical tools for finding the original file to which the soft link points. But this tool
If you have been following us for a long time, then you might already be aware of symlinks (or soft links), but for a quick reminder, they are a kind of shortcut to another file in Linux. Now, you might already be interacting with soft
PING, also known as “Packet Internet Groper”, is the most common networking tool used in Windows, Linux, and macOS to test the connection between the source and the destination. The destination, or remote system, could be a web server, your router, or a computer on
You might already be aware of the Linux shell’s default behavior of capturing each user’s executed commands and storing them in the “~/.bash_history” file, so later you can view the history list using the history command. Although, history is not the only location where your
When a Windows user encounters a Linux system for the first time, their first thought is: where are the “C:/“, “D:/“, or “E:/” drives? So, my innocent Linux newbies, you must know that Linux doesn’t have any concept of local disk like in Windows; here,
The type command tells you the actual type of the referenced command. With this information, you can figure out how a command will be interpreted when you execute it in the terminal. The following is the list of known command types: Aside from showing the
The time command is used to determine the amount of time taken by the referenced command or shell script to execute in your system, from start to finish. It returns the result in three categories: real time, user time, and system time (we will discuss
As its name suggests, the sleep command is commonly used by shell script writers to delay the execution of individual or portions of commands specified after this command in script. Using this command, you can delay the next command’s execution for the specified number of
In this article, you will learn what the difference is between variables and parameters, what special parameters are, and a list of predefined special parameters in Bash. What are “Special Parameters” in Bash? Before you can understand what special parameters are, you must first understand
If you are a sysadmin, then wall command can be your next favorite Linux tool, thinking why? With the help of this tool, you can broadcast messages to all logged-in users on your system, either locally or via SSH. This tool comes in handy, especially
