When you interactively login to your system, you usually interact with your main shell from the terminal to execute commands; however, from your main shell (or parent shell), you can spawn a subshell (or child shell). Confused? I knew this would be more difficult, especially
The UNIX/Linux shell is a command-line program that creates a bridge between the terminal emulator and kernel to allow users to enter commands, execute programs, and perform various other tasks by typing commands at the command prompt. Once the shell has finished executing the user
The “login shell” is a term used to define which shell (like Sh, Bash, or Zsh) will be used to load the environment variables and shell configuration files when you log into an interactive session. 💡 Once you log into your system using a pre-defined
Renaming files and directories is one of the most basic tasks that every Linux user performs regularly using the GUI or command line tools. In both of these tools, renaming a single file is pretty easy, but renaming multiple files can be trickier, especially for
When you create a directory and add files to it, any user who has access to your system and knows how to use the ls command may simply list the files in that directory and see what you have added to it. You can stop
In Linux, the rename command is an amazing utility that allows you to rename single or multiple files at once, based on a set of rules or regular expressions you specify. Most of the time, the mv command is used to rename files or folders.
In Linux, you use the useradd, passwd, usermod, and gpasswd commands to modify users or group-related information, like creating them, deleting them, assigning passwords, etc. Note that these commands only provide you an interface to modify the “/etc/passwd“, “/etc/shadow“, “/etc/group“, and “/etc/gshadow” files with safety
The Linux shell (specifically, “Bash“) records all the commands you run in your terminal and stores them in the “.bash_history” file in your home directory. You can use tools like the history command, which provides you many features and functionality to work with this file,
The Linux shell (specifically, “Bash“) takes each executed command as an event and saves the command in the “.bash_history” file located in the user’s home directory. Now, there are two ways to view the history record of a user’s executed command: one using the history
In UNIX/Linux systems, the mv command shipped with the operating system is usually used for the following purposes: If you’re familiar with the cp command, you can use the same techniques to use the mv command. Even though you can use this article to learn
In UNIX/Linux systems, the cp command is the most commonly used command that allows you to copy files and directories from one location to another. If you don’t know how to use this command, this article will show you how to use it in a
Each command executed in your Linux terminal is being recorded by your shell (referring to Bash) in a separate file (like “~/.bash_history“) that you can view using the history command. For most Linux distributions, the number of commands that should be recorded and the number
